The picturesque lake becomes a battleground as a fierce, long-standing feud between two factions reaches a boiling point. Both on the water and along the shores, pranks escalate into dangerous confrontations that risk the safety of everyone involved. As a major regatta approaches, the desperation to win drives the antagonists to employ increasingly reckless and unsportsmanlike tactics. True character is revealed under the pressure of competition, forcing the heroes to choose between sweet revenge and honorable victory.