The Marvelous Misadventures of Flapjack (2008)

S1E3 Kid Nickels

K'nuckles wagers Flapjack in a poker match, leading to a rift between them. He then takes on a new sidekick, a young boy called Kid Nickels, while Flapjack embarks on a new adventure as a banker's apprentice. However, K'nuckles soon realizes he misses Flapjack and decides to confront the banker in a bid to reclaim his former companion.