Liam brings in medical officer Robin to investigate a lead of mysterious Flower Alien deaths. Aided by Dan and Bob, the new-look Time Agent team embark on a mission to stop a vicious alien disease with the potential to spread to humans.

What's going on at Crescent Street? Why can't Liam enter? Why is he too afraid to go near the place? That's just some of the questions newcomer Dr. Robin Turner asks, as he's settling into the team. And when he and Dan the Cyborg are left to continue the mission by themselves, Liam is kidnapped and held for ransom by a familiar face.

Whilst a smoking lone Venator Ship heads towards the Earth, Dan the Cyborg is training up a new best friend. Dr Robin Turner has mysteriously gone missing and the evil Agent Mortis has broken out of the Code where he had been imprisoned. Can Agent Liam save the day or will sacrifices have to be made?

Two days after Agent Liam has dealt with invisible Dragons, the team begin to act very strangely. Whilst Dan and Mortis become best friend, Liam confronts an alien through rapping. Everyone's agreed on one thing: they are happy. But is this new false happiness a gift or a curse? And where is it coming from? Agent Liam finds himself making one of his hardest decisions yet, as humanity gets the closest it ever has to world peace.

Whilst Agent Mortis and Dan the Cyborg investigate sightings of strange lights in the forest of Dean, Robin is being given strange messages and Liam is trying to hide something. Could these events be connected? And who is Colonel Radcliffe-Naismith?