Brian from Hanna, Alberta, presents the "Safe-D-Pet Monitor" a device that monitors pets in parked vehicles. Tyler, from Sudbury, Ontario presents the "E-Z Glide Sliding Rail Anchor" a safety device that keeps rail workers safe while they repair train tracks on bridges. Excitement mounts as Tyler and Team Einstein square off against Brian and Team Edison to design and build a motorized Robo Artist in the big Invent-off Challenge.