High school students, Franklin and Mariah, have their first date hijacked by giant battling monsters, overbearing parents, and an annoying little brother named Joshy. The ultimate third wheel.

In Southern California, 1968, giant crustaceans emerge from the sea and march for the city! The experts of science and war are baffled as to how to stop them. All attempts fail. Death and destruction surely awaits!

Luckily, friend to all humans and creature from the dark side of the moon, SNARLAGON, arrives streaking through the stars as a silver ball of flame! The kids risk everything, (including dad’s precious car!) to lead Snarlagon back to the city as fast as possible. Will they make it before the Angramites reduce the city to dust? Only one way to find out!