Billy and Mandy are two children from Endsville, a typical "Anytown, USA." One day, while they are celebrating the 10th birthday of Billy's old pet hamster, Mr. Snuggles, the Grim Reaper appears. He comes to reap the old hamster's soul, but, to his surprise, Billy and Mandy are not afraid of him at all. Mandy refuses to give Grim the hámster and offers to play a game for its soul (a homage to the classic film The Seventh Seal). If the Reaper wins, he would get the hamster's soul.

Grim, assured of his victory, says that, if they win, he will be their best friend "forever and ever". Grim takes...