The Unknown " The Unknown " is the first episode of the , which premiered on the German TV network on February 15 , 2014 . It was released in the US and Canada via on March 7 , 2014 . Official description . " " Clone trooper Tup succumbs to a mysterious mental illness that results in the shocking death of a Jedi Master . Unable to account for his murderous actions , Tup is sedated and sent back to Kamino for examination . Anakin and ARC trooper Fives accompany Tup , but their return trip is ambushed by Separatists . " " Plot summary . On a mission to retake the ring space station in Ringo Vinda ' s orbit , Jedi Knight Anakin Skywalker and twin Jedi Master s Tiplar and Tiplee lead several clone trooper detachments against the occupying droid force under Admiral Trench , among them are Clone Captain Rex , ARC trooper Fives and clone trooper Tup . However , Tup has been lately plagued by strange mental disorders which leave him temporarily confused . When the Jedi and clone forces fight their way into the station ' s command center , Tup suddenly goes into some form of trance , constantly muttering , " Good soldiers follow orders . " Upon seeing Tiplar while in one of those blackouts , Tup unexpectedly sneaks up on her and kills her with a blaster shot to her head . This unexpected attack disrupts the battle ' s schedule and the composure of the Republic troops , forcing them to retreat . Tup is checked for medicinal disorders , but strangely no clues to his bizarre condition , which makes him alternate between trances and clear moments where he has no memories of his blackouts , are found . Suspecting a Separatist plot behind this irrationality , Anakin decides to have Tup brought back to Kamino for a more thorough check , but unfortunately Trench has also witnessed the clone ' s strange disorder and contacted Count Dooku . Dooku and his master , concluding that Tup ' s behavior might prematurely reveals their true plans for the war , decide to kidnap the clone before the Republic can examine him . As a result of this , the shuttle meant to carry Tup to Kamino is ambushed just as it is about to enter hyperspace . The shuttle had a crew of 6 troopers and two medical officers . They rushed to get air masks as the shuttle ' s hull was breached , and all succeeded except for one of the medical officers . The troopers were overwhelmed , making a stand for less than a minute , leaving the last medical officer to guard Tup . He valiantly took out two of the super battle droids , but was killed and Tup was kidnapped . Upon investigating the shuttle ' s wreck , Skywalker , Rex and Fives swiftly notice Tup is missing and conclude that his strange malady is somehow of great interest to the Separatists . Following the signal from Tup ' s communicator , they sneak their way to the ring station ' s main hangar just as Tup is brought aboard a shuttle , but find it too heavily guarded to fight their way to the ship . Just before the shuttle leaves the hangar , however , Fives gets the bright idea to use grappling lines to catch a ride on the shuttle just as it leaves the hangar ; the three thereupon board the ship , disable the droid crew and return to their own lines to prepare another transport to Kamino . Fives persuades Rex to allow him to accompany the transport , and the two depart with their stricken comrade for Kamino . Behind the scenes . Ringo Vinda , the planet shown at the beginning of the episode , was based on concept artwork for a ringed planet during production of . In addition , the characters Tiplee and Tiplar ' s designs were derived from concept artwork for a female Sith that was cut from . The clone commander Doom ' s design was derived from that of the Marvel Comics villain . The episode featured an updated design of the B2 - RP battle droid s , resembling the female Zentraedi power armor in the animated series " " . Although the transport used to carry Tup to Kamino was referred to as a " medical frigate , " its design in the episode was a Republic frigate . The episode marked the first appearance of Admiral Trench since the episode " Cat and Mouse . "