Carl Grimes/Season 1

When the camp received on the radio an emergency broadcast from a man on his way to Atlanta, Carl witnessed in confusion as Lori argued with Shane about putting up signs on the road to warn people away from the city, and was left very concerned about the idea that his mother was going to abandon him after everything that he had been through. While searching for his mother to ask her if she really intended to leave him alone to go on her mission, Carl almost found out about her romance with Shane. Eventually, Lori comforted Carl by assuring him that she would never leave his side no matter what, before giving him a kiss and sending him to do all his chores like he had been used to. ("Days Gone Bye")

Some hours later, Carl was playing around in the dirt with some toys when Lori ordered him to stay where Dale could see him while she went into the woods to collect mushrooms. Later that day, while Shane taught him the correct way to tie up knots to make a proper rope, the camp received T-Dog's distorted distress message. Carl then listened as Shane refused to send a rescue team and how Lori went after Amy to comfort her. ("Guts")

When Rick reappeared in the camp with the group that had traveled to the city for supplies, Carl was full of happiness to see his father alive and well and ran to embrace him. The next day, when Rick informed his family that he had planned on returning to Atlanta to rescue Merle Dixon, Carl assured him he understood his reasons for doing that. Shortly after, Carl comforted his mother by saying that if his father had already survived everything that had happened to him up to that point, there was nothing else that could kill him anymore. ("Tell It to the Frogs")

Carl was impressed by Andrea and Amy when they arrived back from the lake with several caught fish for dinner. After Dale informed everyone at the camp about a paranoid Jim digging holes without an explanation, Carl witnessed as Shane subdued him and tied him to a tree until he would feel better. Shortly after, Jim told Carl not to worry about his father because he was a brave man who kept his promises. That night, everyone was reunited around a campfire as they listened to Dale's stories. When the camp was attacked by several walkers, Carl and Lori were protected by Shane until Rick and the others returned in time to help defend the place. ("Vatos")

The next morning, Carl remained upset because his father had not been present during the camp attack to protect them and then asked him if they would be safe now that they were together, to which Rick replied that they were and also promised that they would never be separated. The next day, Carl was present in the last camp meeting where he said goodbye to the Morales family. While the remaining group of survivors departed towards the CDC, they left an infected Jim under a tree by the road as his last wish. Upon arriving at their destination, they found everything abandoned. As some walkers began to approach them, Carl began crying terrified at the sight of all the undead when suddenly the doors opened in time. ("Wildfire")

Upon entering the CDC, Carl and the others were reluctantly welcomed by the sole remaining employee, Dr. Edwin Jenner, who allowed them to stay in exchange for some blood tests. That night, the group had a feast in the cafeteria and enjoyed all the luxuries the facility had to offer, beyond happy about having found a safe place. Carl tasted wine for the first time and was disgusted by its taste. Shortly after, Sophia had a game of checkers with him before they both went to bed. The next morning, Carl and the group learned that the virus that had caused the outbreak erased any conscious human traits from someone infected.

When the power generators began to ran out of fuel, Jenner revealed that the facility would explode due to a self-destruct protocol and then sealed everyone inside the control room, explaining that it would be a quick and painless death. Carl began to cry desperately as he did not want to die that way, and his tearful face made Jenner reconsider his decision. After Rick eventually made Jenner change his mind, the survivors ran in a hurry to escape. Upon finding the top doors locked, Carol handed Rick a grenade she had found in his uniform and everyone took cover as he used it to blast one of the windows. Carl and the group escaped as the CDC exploded and then continued their journey towards a new destination. ("TS-19")