For twelve years, Gal has nursed a burning desire for revenge. As the anniversary of his mother's death approaches, he leaves Atlantis, determined to track down Zale, the shark shapeshifter who robbed his mother's life. But as he sets sail on his quest, he discovers his two closest friends have stowed away on his vessel.

Their pursuit of the elusive selachii propels them to the Antarctic, where a brutal storm threatens to drown them. Gal's reclusive grandfather comes to their rescue, regaling them with stories of his parents' epic love and unveiling hidden family secrets. Yet, Gal is convinced that love is a treacherous path, one he dares not tread for fear of the pain it may bring.

Locked in a battle with his own emotions, Gal's quest leads him to distant horizons in pursuit of his nemesis. But only by trusting in the unbreakable bonds of friendship can he unlock the secrets of a magical ice flute and unearth the lost trident of Atlantis—the sole weapon capable of ending Zale's reign of terror.

Caught between revenge and an unexpected love, Gal faces an impossible choice. Will he give up vengeance for the chance at love, or will he dive headfirst into the abyss of retribution?