The enemy is closing in. Regina is desperate to expose the truth about HumaniTeam, but can she really take on a powerful corporation that'll do anything to protect its dangerous secrets? Oliver is done pretending to be a hero; he just wants life to return to normal. But before he can go back to being a regular kid, he'll have to risk it all to save everything-and everyone-he cares about. Joule is ready for a fresh start during her semester at sea, but when she discovers something terrifying in the water, it's up to her to warn the world before it's too late.