When Stephen decides to have some fun with his newfound powers, Jedikiah takes extreme measures to make sure it doesn’t happen again. After John and Russell return from their trip, John feels a strange tension between himself and Cara. Stephen tries to handle a new and dangerous breakout on his own, but finds himself in over his head and needing help from his fellow Tomorrow People.

Stephen feels uneasy about his fellow trainee Hillary who has a secret agenda of her own. Stephen's mom wants the family to go camping including her new boyfriend Peter, whom Stephen seems to be having a difficult time reading. Knowing he is going to be out of town, Stephen asks for Cara and John's help to make sure that everything is ok with Astrid while he's gone.

Stephen is still walking a fine line with his Ultra partner Hillary, who continues to be suspicious of his loyalties. When the Tomorrow People and Ultra learn that there is a new break-out doing good for humans, they both want her on their side. Meanwhile, Morgan takes a risk and betrays Jedikiah’s trust to help the Tomorrow People, but what Jedikiah discovers from Morgan is an even bigger surprise.

When the Tomorrow People learn the truth about the serum they were injected with, Stephen and Cara attempt to buy time for Jedikiah while he tries to create a possible antidote. Growing impatient, Russell and the other rogue Tomorrow People make a rash decision to sacrifice Roger to Ultra for their own safety. Meanwhile, John is having a hard time figuring out his new role and the only one he can turn to for advice is Astrid.