One hot summer day, Jimmy Neutron devises a boy-genius idea to beat the heat - 900 SPF sunblock! In launching the potent cream towards the sun, however, the town turns into a winter wonderland, causing a new ice age. Can he find the solution before the angry cave people of Retroville find him?

Blast off with Jimmy Neutron, everyone's favourite boy genius, and his faithful robotic dog, Goddard. One hot summer day, Jimmy Neutron comes up with a boy-genius idea to beat the heat - 900 SPF sunblock! He launches the potent cream towards the sun, and the whole town becomes a winter wonderland. But things get a little too cold for comfort when Jimmy's sunblock causes a new ice age. Can Jimmy find the solution before the angry cave people of Retroville find him?