S1·E46 I'm Home × Welcome Back × I'm Killua

Gon and Killua take a ship to get to Whale Island where Gon grew up. Killua is surprised that there is no bus and they have to walk, and that the house is really small. Mito, Gon's aunt, welcomes them and asks about the exam. When they go camping in the forest, they hear a shot and come running, seeing a bunch of poachers attacking the fox-bear and his cub. Easily beating them, they take the cub home. Gon wants to save him, but Killua insists on stopping his sufferings by killing him. Finally, they heal him with their Nen.