Ben 10

The Rustbucket is docked at a coastal port, its crew on a rare break from road trips. Ben Tennyson and his team are aboard a luxury cruise liner, a setting that quickly becomes a battleground. The serpentine warlord Ssserpent has surfaced, his forces scouring the ocean depths for the ruins of a forgotten civilization. As aquatic skirmishes erupt around the ship, Ben finds his attention divided by a new companion whose behavior grows increasingly erratic. The calm blue water churns with alien energy and displaced sea life. Sunlight glints off the Omnitrix as it cycles through forms suited for deep pressure and close combat.