The story revolves around a ten-year-old boy named Max, who has a very unusual best friend. Sharkdog is a unique creature - half shark, half dog. He has an insatiable appetite. Sharkdog remains blissfully unaware of his own strength and natural inclination towards aggression. Despite his friendliness, he often unintentionally turns the surrounding space into utter chaos. But, like all half-dogs, Sharkdog knows how to be a friend.