Ted and Barney's future versions attempt to persuade present day Ted to go see Robots Versus Wrestlers. Marshall and Robin have a dance-off.
In the Nerd War teams are forced to use their intelligence during a potentially slippery puzzle challenge. Later in the Nerd Off two friends are pitted against each other in a memorable challenge.moreless
In the Nerd War, teams split into shooters and flyers in a test that has them compete for the most points in an quadcopter obstacle course. In the Nerd-Off the selected losers must control a golf cart by remote control to score 2 goals in a soccer net.moreless
Chuck and Sarah go undercover in Milan in order to find a secret weapon.