Michael Mosley as Colton
Episodes 9
Part 6
The shooter of the chained infected is revealed to be Colton, Gabi's boyfriend. Colton and Gabi embrace, relieved to have found each other. Colton admits he thought he had lost Gabi "when the bombs fell." He enquires after Gabi's sister and Sierra. Gabi say's Sierra is the reason she reached the construction site alive. Colton thanks Sierra and Gabi says her sister is dead because they waited too long. As Sierra picks up her dropped knife, Gabi and Colton embrace again, while Gabi says she and her sister waited because she thought Colton was coming for them.
Read MorePart 7
Colton brings Sierra and Gabi to the tunnel and tells Gabi to go down first. She seems concerned about Sierra, and Colton says he will send her down next as he has to go down last in order to close the tunnel behind them. After Gabi enters the tunnel, Colton faces Sierra and tells her that he is sorry, but he can't take the chance that she will tell anyone else about the tunnel. He raises his gun to shoot, but Sierra reacts faster than he thought he would and she stabs him in the leg. She climbs down into the tunnel while he is recovering.
Read MorePart 8
Sierra descends the ladder into the tunnel where she in confronted by Gabi while Colton keeps shouting from above that the tunnel is unsafe. Sierra tells Gabi the truth-- that Colton tried to kill her. She also tells Gabi that Colton abandoned her and had no intention of coming back for her. Sierra says they have to leave and starts down the tunnel. Gabi stares at the circle of light above and listens to Colton for a moment longer, before turning just as Sierra hits a trip wire.
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