In the Mojave Desert, there is a structure built to bestow everlasting life and according to the architect, the blueprint was provided by an extraterrestrial visitor known as the Integratron, could it actually provide the key to immortality.

With the portal to hell open, Trevor and Sypha must battle an onslaught. Meanwhile, the Judge shares a disturbing legacy, and Hector learns his fate.

Guzmán attempts to make amends. Nadia threatens payback when she and Lu go after the same scholarship. Ander comes clean to his loved ones.

As the crew narrows down the list of suspects, Cesar asks Monse out on a real date, Ruby stresses over a growing attraction, and Jamal seeks sex advice.

After Prince Chang breaks into Mungyeong Saejae, a nightmare unfolds. Officials search the queen's home, suspecting she is hiding something.

The Ark returns to Cybertron, with the Autobots aboard reporting no apparent Decepticon activity. Meanwhile, on Cybertron itself, Chromia and another Autobot, Perceptor, break out of their captivity to try to warn their comrades of the Decepticons' death trap. Unfortunately, they are recaptured with Chromia being forced to watch as Shockwave destroys the Ark with his latest invention, the laser snare.

The Decepticons revel in their apparent victory until the Autobots reveal themselves, with Optimus having earlier suspected their trap and ordered the evacuation of the ship's crew. A large-scale battle occurs between both sides with Prowl taking a fatal shot from Shadow Striker meant for Optimus while Shockwave and Megatron initiate a secret plan.

As the battle continues, Bumblebee, Hot Rod and Cheetor head off to the Well of the AllSpark while Hot Rod deals with Drift, who reveals he faked his defection to the Autobots. Meanwhile, Wheeljack sends Vector Sigma into Unspace and Windblade engages Bludgeon in a final duel that ends with her sending the Decepticon into Unspace as well.

At the Well of the AllSpark, Bumblebee and Cheetor engage Shockwave and defeat him. However, as the AllSpark is placed back into its well, Shockwave sends his spark into the AllSpark to corrupt it and subsequently dies. In response to Shockwave's action, Cheetor sends his own spark into the artifact to reverse its corruption and fully revitalise Cybertron, sacrificing himself in the process. Optimus sends Megatron flying into a swarm of Scraplets, achieving complete victory for the Autobots and ending the war.

Clare's relentless hunt for the leak in Barton pays off, while Cam wrestles with his conscience over the beaten detainee. Sofie uncovers an ambitious escape plan, and Mina tries to support her grief-stricken father.

The privileged Olivia eagerly embraces her new writing class but her instructor and an awkward fellow student soon have her questioning reality.

After months away with her family, Ruby returns to the hospital for her pregnant sister to give birth. A life and death medical crisis unfolds, forcing Ruby to see where her loyalty lies. Greg gets a surprise family visitor.

Jessica Cruz and some super friends go on an overnight camping trip without their powers and are attacked by Poison Ivy and a horde of Plant Zombies!

Ted and Harrison go on an adventure, Gillian is pushed to breaking point at the farm, and Caroline finds herself at the heart of an unlikely love triangle. Alan and Celia find reason to laugh together again, but sobering news awaits them at home.

The Trenchard family have recently ascended to the aristocratic society of London's Belgravia, but a decades old love affair comes back to haunt them and jeopardise the happiness of many.

Freud is preparing for a presentation to the Vienna medical profession. He wants to demonstrate the effectiveness of hypnosis. Inspector Kiss tries to save a seriously injured man with Freud's help.

When Freud receives the news that Clara von Schönfeld, the girl from Fleur's visions, has disappeared, he is alarmed. An anonymous message leads the police officers also investigating this case to the underground in Vienna.