Greg checks out Archimedes' plan for a Death Ray in 214BC, Fran investigates déjà vu, while Dom lights up a massive fire tornado!
Dom travels to Egypt to fire up a poo-powered go-kart.Fran shows how to survive a plane crash. Greg fires up a chip pan inferno.
Fran creates a Hydrogen bubble fireball. Greg demonstrates how flour can explode. Dom explains how cockroaches can survive a nuclear attack.