There's something strange going on at school. The Breakfast Club Investigators haven't managed to solve a mystery in months and Marcus is worried that the group is going to break up! So when Gbenga, the captain of the school basketball team, comes to ask for their help Marcus knows this might just be the Investigator's last chance to prove themselves. The basketball team have had a streak of bad luck, and Marcus and his mates are sure there's more going on than meets the eye.

As the mystery deepens and they uncover one surprising clue after another, they discover that someone - or something - has cursed the basketball team! Can Marcus and his friends solve the mystery in time?