It's his first day at a brand new school, and Jacob wants to look cool, so he borrows his brother Daniel's favorite skull T-shirt to wear. What he doesn't realize is that skull shirts are against the school rules, and before he knows what's happening, Principal Greedyguts has confiscated the shirt and locked it away in the school vault. Jacob's got to get that shirt back! Aided by an odd kid named Buford and a daredevil skateboarder named Renee, Jacob dares to enter the forbidden Staff Room of Doom! Together, they face Greedyguts' Indiana Jones-style booby traps, and they make a daring escape. Jacob gets the T-shirt back, and he makes two new best friends in the process!