A year has passed and much has changed. With her father dead, Ariadne is queen and finds herself at war with her old adversary, Pasiphae.
As the kingdom stands on the brink of collapse, the struggle for power is both bloody and brutal. With the future looking bleak, there is only one person Ariadne dares turn to for help: Jason. The time has come for the young warrior to fulfill his destiny. The battle for Atlantis has begun.
Pasiphae lays siege to Atlantis and without the Palladium to protect it, the city looks set to fall. The last remaining hope rests with Jason, Hercules and Pythagoras, but far from home they are fighting a desperate battle of their own. As the conflict reaches its thrilling climax, nothing could have prepared Hercules for what he discovers - it throws into doubt everything he once knew to be true and is set to change the course of the future forever.
Ariadne is formally crowned queen, but with Pasiphae still at large and the city struggling in the aftermath of battle, Atlantis remains vulnerable indeed. So when an enigmatic stranger arrives offering salvation, he proves hard to resist. But his proposal is far from straightforward - will the cost be too much for Ariadne to bear?
As Jason fights for glory on the tournament ground, Ariadne embarks on her own private battle. Her's is a contest of head over heart, but which will win out only she can decide.
As plans progress for the royal wedding, Ariadne must undertake a journey to Telemon's homeland of Aegina. With the kingdom still beset by Colcheans, Jason is not the only one who fears for the queen's safety.
Determined to do what is best for her people, Ariadne continues regardless. But as the voyage progresses, it becomes clear that the royal retinue faces enemies at every turn. Has the young queen's luck finally run out?
As the dust settles, the gang find themselves dispersed around the ancient necropolis. And they soon realize they are not alone - the space is crawling with a magical army of the undead. The race is on to find Jason before he falls prey to the flesh-eating monsters.
Elsewhere in the cave system, as Jason battles for his life, he finds an unlikely ally in the mysterious Medea. But can he really trust her?
As Ariadne lies on her deathbed, Jason's guilt is almost too much to bear. He resolves to do all he can to save her and embarks on a dangerous quest into the unknown.
Emotions run high as Jason battles against the hand of fate. But after a daring encounter with the ancient Grey Sisters, his mission sees him come full circle, bringing him face to face with Medea and Pasiphae once more. Can he thwart their powerful magic to save his love, or do they have other plans?
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.
But Pasiphae's pursuit of power has far-reaching and devastating consequences, and as the battle for Atlantis continues, it seems no-one is immune to her touch.
Jason has been sentenced to death for killing the Oracle and, faced with the impressive 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?
Pasiphae has seized Atlantis and Ariadne's life hangs in the balance, but our heroes are unable to help. As wanted men, they have been forced to seek refuge in the mountains high above the city and are fighting for survival themselves. As nightmares become reality, only one thing is certain - it will take a sacrifice of unimaginable proportions to set things straight.
The Oracle's prophecy has come true - the revelations about Pasiphae have blackened Jason's heart, and he bears little resemblance to the man we know and love. His attitude is reckless and foolhardy, and he no longer seems to care about anyone or anything - even Ariadne.
Desperate to save his friend, Pythagoras sets off in search of help. But he soon discovers that not everyone is as keen to protect Jason as he is...
When our heroes discover that Jason has been caught by Pasiphae's troops, they know they must do all they can to rescue him before he is lost forever.
Aeson embarks on a brave and dangerous mission into Atlantis to save his son. But he is one man - and with traitors at every turn, can he really succeed?
Jason is determined to rescue his fellow prisoners from the amphitheatre. But this means returning to Atlantis, the heart of Pasiphae's power and, with traitors at every turn, this is more dangerous than ever.
As events come to a head it becomes clear that while Pasiphae lives, there will never be peace. For Jason and his friends only one thing is certain - the Queen must die.
As Jason and Ariadne prepare to return to power in Atlantis, they must decide who they can trust. Anxieties run high as our heroes form new alliances with old enemies, whilst questioning those they love.
As they enter the city for the first time since Pasiphae's death, only one thing is certain - nothing will ever be the same again.