Jason's discovery has blackened his heart, leaving him a shadow of the man he used to be. Reckless and foolhardy, he no longer seems to care about anything or anyone - even Ariadne. Pythagoras is desperate to save his friend, so he sets out in search of help, but soon discovers not everyone is as keen to protect Jason as he is.

When news reaches Pasiphae of Ariadne and Jason's impending marriage, she is terrified that Atlantis will be lost to her forever and resolves to do all she can to stop the union, no matter the cost.

Jason is determined to rescue his fellow prisoners from the amphitheatre, and makes a daring return to Atlantis, which is becoming an ever more dangerous realm under Pasiphae's villainous rule. The hero and his friends face treachery at every turn, and come to realise that the only hope for the future is to kill the queen.

Ariadne – now queen and in an epic war against Pasiphae's army – turns to Jason, Hercules, and Pythagoras for help. The time has come for Jason to fulfill his destiny. The battle for Atlantis has begun.

After crossing a young nobleman, Jason and his friends find themselves at the mercy of King Minos, who declares Poseidon will decide their fate: they are to become bull leapers

Despite their newfound fame after slaying the Minotaur, the boys are still penniless and hungry. When an old man asks them to find his missing daughter, things seem on the up, but it soon becomes clear that their task will not be an easy one; she has been taken by the Maenads, fanatical worshippers of the god Dionysus. With the hopes and life of the old man fading, it is a race against time that Jason cannot turn his back on. But just when their perilous task seems at an end, he comes face-to-face with a stranger named Medusa.

Jason has been sentenced to death for killing the Oracle. Faced with the irrepressible might of the High Priests it seems there is little anyone can do to save him – even Ariadne. As Pasiphae tightens her grip on Atlantis, the future looks bleak. Hercules knows that there is only one way to save his friend: Medusa. But that would mean losing his love all over again. Is it a sacrifice he is willing to make?

After the tragic events surrounding Medusa’s disappearance, the boys pay a visit to the inventor Daedalus whose genius offers hope of a cure. But, unwilling to wait for answers, Hercules acts on information from the unscrupulous Crios and sets off in search of his lost love. His decision soon sees the boys literally running for their lives as they become the prey in a brutal manhunt. With hopes of an escape fading fast, their courage is tested to its limit, until a lifeline comes from an unexpected source.

Penniless and starving, Jason cannot believe his luck when he stumbles across an abandoned feast. Temptation proves too much and he helps himself to the bounty, savouring his first proper meal in days but it soon becomes clear that Jason's gluttony has come at a price as he begins to exhibit some seriously strange behaviour. As things spiral out of control, it falls to Hercules and Pythagoras to save their friend before Heptarian and the palace guards bring his exertions to heel for good.

Desperate to win over Medusa's heart, Hercules pays a visit to a powerful witch, Circe. But events take a malevolent turn when Hercules realises he has unleashed a potent but toxic enchantment that threatens to turn his burgeoning hope into unbearable grief. With a bitter chain of events rapidly unfolding, it is up to Jason to undo history before it is too late. As he re-traces Hercules's steps into the mountains he is unaware that a deadly trap has been set for him; one with far-reaching consequences beyond the fate of just his friends.