The Beach (S03E12)

Title: The Shore Plot: Stan and Kai plummet into the ocean, but as they struggle, Kai finds himself being pulled deeper toward the Earth's core, while Stan faces the grim reality of drowning. Meanwhile, a security guard wakes up on a sandy beach, only to be confronted by Prince. The prince informs him that he must justify his existence and demonstrate why he should be granted eternal life on the serene shores of Water instead of the fiery depths of Fire.