While on a job, Shalimar is injured, she is helped by another feral mutant, Nikki, whom she knew, who was almost chosen for the team. While Shalimar recuperates, she offers to fill in. But when she appears to be ingratiating herself, Shalimar feels threatened. They eventually track the person they were looking for but Nikki kills him because he knows that Nikki was the one who injured Shalimar.
Adam's sends them on a mission but doesn't give them much information. They're following a prisoner being transported in a van. Someone stops the van and releases the prisoner. When they arrive, they learn that the man is a mutant and tried to kill them. Later Brennan's upset with Adam but Adam tells him that he was entrusted to keep a secret and leaves after talking to that person. The man is looking for someone and is willing to kill anyone to get to that person. It turns out to be the same person Adam was talking to. When he arrives they lock themselves in a room ...
Someone tries to kill Adam but the team saves him. The person who killed him was part of a group of assassins. So Adam sends Shalimar to join them and find out who wants to kill him. She learns that it's a man whom Adam knows. Shalimar convinces the leader to let her kill Adam.
A mysterious tribunal finds Adam guilty of trying to dominate the world with his super-mutants and sentences him to death, sparking the rest of the team into life as they set out on a mission to save him.
In the exciting season opener, the surviving members of Mutant X emerge from a deadly explosion to meet the beautiful and mysterious Lexa, who makes them begin to question fundamental assumptions about their world.