What Could Possibly Go Wrong?

In the Season 2 premiere, the guys attempt to make a 400-pound canoe float; and also try to stop a speeding car sans brakes. Also: a beer trick for summer cookout parties.

Kevin and Grant explore how fast a skateboard can travel; try to build the ultimate Slip 'N Slide; use a motorcycle at a playground to create the world's scariest merry-go-round.