A risky plan pays off, leading to a reunion — and new revelations. Stuck in a precarious situation, Charlie and Dog form an uneasy alliance.

Years in the past, Kong roams the island with a beloved human friend. But when his temper gets the better of him, the consequences could be dire.

Charlie proposes a daring plan to defeat the sea monster and save Mike's life. But it will take all his courage — and Kong's strength — to pull it off.