Gon and his teammates have been challenged by a group of criminals hired by the Hunter Association. Gon wins with wits, and Kurapika's red-eyed rage assures a victory. But Leorio is all out of luck, and loses precious time for his team. It's up to Killua to save the day with a gruesome display of his assassin skills. With time running out, it takes ingenuity and brute force to beat the clock and the test.

The fourth exam finds the team stranded on an island for a battle royale. Can Gon get the best of Hisoka, or will he be... eliminated?