Cheo

* Season 4
* Season 3
* Season 2
* Season 1

> Come on, Chase. I know my brother is in there. Where is he, Chase? Where is my brother?
>
> Leo to Chase

> Couldn't be prouder of you, buddy.
>
> Chase congratulating Leo for becoming a mentor

**Cheo** is the brotherly relationship between Chase Davenport and Leo Dooley in *Lab Rats*. They are brothers, best friends and teammates, but there are times when the brothers are in conflict with each other (Lab Rats: On the Edge). Though they tease each other, Leo and Chase look out for each other and are extremely close, sometimes bonding with each other more than their relationships with Bree and Adam.

Their relationship is sometimes called Lase (**L**/eo and Ch/**ase**) or Chaseo (**Chas**/e and L/**eo**)

## Throughout the Series

Crush, Chop and Burn, Leo and Chase meet each other, approximately in 2012, when Leo accidentally stumbled across a secret elevator and found a lab within his step-father's basement. Chase was the first bionic teenager Leo had seen and was scared of his unknown step-siblings. However, Leo grew more relaxed when Donald explained who the three siblings were and admittedly, both Leo and Tasha were disturbed by how Donald treated the kids, such as making them eat fiber pellets that fell from the top of their capsules into their arms. When Chase first met Leo, he could barely stand him but quickly warmed up to Leo when he took them to school and showed Chase (and Adam and Bree) the outside world for the first time. Leo establishes that Chase, Adam and Bree as his best friends and was sadden to see them gone when Davenport was going to send them to Facility X in the Frozen tundra. Chase called Leo the first friend they ever had (with Adam correcting them that Leo was their only friend. Leo admitted that in their short time together, he came to love them, which Leo unknowingly admitted to the Lab Rats when Leo thought they just robots at the time. Later, when Davenport and Tasha told Leo that they sent the "robots" to a recycling department and went to rescue them. Chase was immediately concerned when he first saw Leo fall into the recycling bin and sprang into action to save his stepbrother, along with their other siblings. After seeing the kids use their bionics, Donald decided that the kids could stay and Leo was overjoyed.

In "Leo's Jam," Later, Chase and Leo fall in love with the same girl, along with Adam. Despite winning Danielle, Leo chooses to apologize to Adam and Chase for sabotaging their chances with Danielle and calls them his brothers. Chase later acknowledges Leo as his brother in "Exoskeleton vs. Grandma," where Chase and Leo apologize to each other.

In "On the Edge," when Leo discovers a new ability called EMP generation with Taylor, Chase forbade Leo from ever using the ability because it proved to be too dangerous to use, as Chase did not want Taylor or Leo to get hurt. However, the two disobeyed Chase, and used the ability again; however, the EMP generation resulted in Leo permanently blinding Taylor. The older Davenport brother scolded Leo for causing her danger and deems him unworthy of being a leader. Leo takes his brother's words at heart, especially after learning Taylor will never see again, and decides to quit the team and the academy and move back to Mission Creek. Chase revealed that he never meant for Leo to quit, possibly thinking he had been a little harsh on his brother, and he felt that Leo should stand with them during the award ceremony because he was a hero just like them. Later, Chase and their family are trapped on the Hurst Bridge and Leo goes to rescue them. On the mission, Leo refuses to give up on saving Chase, who tells his younger brother to let go or the car will take him too; Leo refuses and saves his brother from falling and the two brothers hug each other, glad the other is safe from harm and finally reconciling. Afterwards, Leo is able to stand next to his siblings and later, Chase congratulates his brother to finally making it, claiming he couldn't be any prouder than him.

## Moments

### Season 1

#### Crush, Chop and Burn

* Chase was the first bionic person Leo met.
* Leo was scared of Chase at first, and the latter could n ot stand him.
* Chase told Leo that intelligence was the most superior in the lab, but Bree and Adam disagreed.
* Leo is disgusted by how Donald treats Chase (as well as Bree and Adam)
* Leo says he loves Chase and the other Lab Rats.
* They join each other in a group hug with Bree and Adam.
* Chase and Leo called each other (as well as Bree and Adam) as each others' best friends.
* After Leo falls into the recycling containment unit, Chase shouts Leo's name in concern and wants to save him from the chopper.

#### Commando App

* Leo tells Chase to send Trent a postcard when he wants to apologize to the football team.
* Leo feels guilty for turning Chase into Spike for popularity and admits they took things too far.

#### Exoskeleton vs. Grandma

* Major Chase and Leo episode.

* After the incident, Chase and Leo hugged.
* Leo unintentionally hurt Chase's feelings.
* Chase wanted to mess with Leo by sabotaging the Exoskeleton.
* Both of them apologize to each other for showing each other up
* Chase said he needed to get used to having another brother around.
* They fight the exoskeleton

#### Robot Fight Club

* Chase and Leo bond a lot in this episode.
* Leo came to Chase for help about the robot throwdown and agreed after Leo revealed the grand prize was 500 dollars.
* They built the robot together and let Donald join their team. However, they both kick him out when he destroys the robot they worked hard only.
* The boys won their battles.
* After beating Donald in the Robot Throwdown, Chase and Leo side-hugged.
* Afterwards, Chase and Leo both danced in victory, both against Kevin Stone and Donald Davenport.

#### Bionic Showdown

* Leo hated Chase's joke about the oil spill at the beginning of the episode.
* Leo looks to Chase in shock when he hears him questioning Donald's leadership.
* Chase is the only one who tells Leo they are sorry they didn't believe him about Marcus.
* While Bree was mad at Leo for not telling them Marcus was bionic, Chase realizes that Leo was only trying to protect them
* Chase (as well as Bree and Adam) didn't let Leo go with them because it would be too dangerous for him.
* Chase thought Leo was killed by Marcus, and mourned for him.
* Chase pointed out that Leo was alive.

#### Perry 2.0

* Both were hanging out at school together and in the lab doing homework.
* They both wanted Donald to stay out of their business because of his ego.
* Chase and Leo are mad at Donald for creating Principal Perry and ignoring them.
* They had to hang outside of the cafeteria because the whole school hated them for talking their dad into helping the school.
* They hacked into Perry to get back at Donald.
* After Robo Perry threw Donald, Chase agreed with Leo when he commented, "Now, that's a Daven-Splat"
* When Donald reveals Chase could not stand Leo at first, it causes him to glare at his brother.
	+ Chase gives an expression of guilt and a cheesy smile, showing he may regret thinking that of Leo.
* Chase looked at Leo for bait.
* Chase asked Leo if he was alright after the fight with Perry.
* Chase blames Donald for causing him and Leo pain.
* As soon as Perry knocks down her robot lookalike, Chase and Leo fist-bump.

### Season 3

#### Sink or Swim

* After the Lab Rats returned home, Leo and Chase hugged.
* Leo was horrified to see Chase and their siblings were under the Triton App.
* Chase nearly dropped a crate on top of Leo, but he tried talking his brother out of it.
* Leo tells Chase he taught him what it means to be a good brother (not like how Adam is to Chase).
* Leo yells that he knows Chase is in there somewhere and adds, "Where is he, Chase? Where is my brother?"
* After Chase wakes up from the Triton App, he realizes what he is doing and stops himself from hurting Leo.
* Leo breaks Chase through the Triton App.
* When Chase is facing Adam and Bree and using two abilities at once, Leo yells that he believes in Chase, who shouts to Leo to stop talking to him os he can concentrate.

#### The Jet Wing

* Leo and Chase worked together at the control station during Donald's stunt.
* Both of them knew Donald was not used to promoting for anyone but himself.
* They panicked trying to figure out a plan to get Donald down safely.
* Chase didn't disagree with Leo when he blamed himself.
* Leo and Chase almost exposed Chase's bionics, especially when they both said "Bioni-Hi!"
* They both tried to save Donald.
* Leo tells Chase to talk to Donald in keeping his hopes up as they figured out how to get Adam and Bree there.
* Chas agreed with Leo's idea to throw Donald's parachute up to him.
* Leo grabbed and shook Chase as he tried stopping Donald's fall.

#### Mission: Mission Creek High School

* Chase and Leo danced when Donald showed them the new lab.
* Leo showed Chase (along with Adam and Bree) the new lab.
* Chase put his arms around Leo and pushed him to safety when Perr.y almost hit them with her car.
* Chase tried to save Leo by stopping the rocket before it hit Mission Creek High.

#### Not So Smart Phone

* Chase showed off his new phone to Leo and let him borrow it.
* Chase tries to impress Leo with a story on how he got the phone, possibly trying to act like a cool, older brother to Leo before Bree reveals they all got one.
* Leo took a selfie and told Chase he didn't really photograph well upon seeing the selfie Leo took.
* During the bowling video, Leo listed Chase's hobbies as creeping out girls.
* After Chase was thrown on the ground, Leo called Chase a loser.

#### Taken

* Chase wanted to save Leo (and Tasha) from Krane on his, Bree and Adam's own.

#### You Posted What!?!

* Chase agrees with Leo that his plan of telling everyone the footage was doctored can work.
* Leo said the girls never notice Chase, causing him to glare at his brother.
* Leo wanted to rescue Chase and the others when they were captured by Graham and the FBI.
* Chase is sad they cannot say goodbye to Leo.
* Chase is concerned about Leo when he heard he was injured by Taylor and begs Agent Graham for them to see Leo.
* When learning that Krane was behind the global exposure of the Lab Rats' bionic secret and being informed that Leo was missing, Chase says, "Krane is behind this? We have to find Leo" in a concerned tone
* Leo knocked out Krane while saving Adam and Chase at the same time.
* Chase is shocked to see Leo is bionic like them.

### Season 4

#### On the Edge

* Leo saved Chase, the brothers reconciled and hugged twice. The first time, as they reconciled, and a second time, as Chase congratulated Leo on making it to the role of mentor.

## Similarities

* The youngest siblings in the four main trio.
* Both do well in school
* Interested in science and technology.
* They are often teased by Adam and Bree, however, they both get along better with Bree than they do with Adam, who also teases them about their height.
* At one point, they also snuck Douglas into Davenport's lab. (however, Chase lured him there and Leo brought him to the lab to fix Bree's chip.
* Anti-social and both mocked for their intelligence. (Leo mentioned how hard it is being the smart kid in school)
* They often feel overshadowed by their older siblings (Chase gets hurt by the lack of respect his team has for his intelligence, and Leo feels inferior to Adam, Bree, and Chase because they are all bionic humans, and later, because they doubt he has it in then to be more than being the youngest)
* They also get annoyed by Davenport's big ego, because whenever Donald tries to improve something, he always lets his big ego get in the middle while he tries improving his younger sons' lives.

## Differences

* Chase was bionic in the beginning of the series while Leo was an ordinary boy until "You Posted What."
* Leo's taller than Chase.
* Chase is a year older than Leo.

## Trivia

* Chase was born on August 5th and his Zodiac sign is a Leo.