A jumpy bicyclist mistakenly reveals more than he had planned; officers search a darkened building in an attempt to thwart a robbery in progress; a frightened woman just can't keep her cool when stopped by the cops.

When a meeting of rival Los Angeles gang lords is orchestrated by the Quantou gang, Carter and Lee must infiltrate it to find Lee's sister Kim and save her from going further with the Quantou.

With the exception of Thor, the Avengers become trapped in the 30th century and must beat Kang the Conqueror to find their way back to their own time.

When Leonardo secretly allies himself with Karai, he gets himself into deeper danger than he could have realized.

This episode features the tallest robot - and also one of the most bizarre - ever seen on Robot Wars: Gabriel, built by Mensa member Craig and his three sons. It has wheels as tall as a washing machine and a huge samurai sword.

Other robots include Thermidor, shaped like a lobster by a team who have never eaten lobster; and Pulsar, built by 19-year-old self-taught engineer Ellis and featuring 9,000-RPM spinning teeth. There are dramatic scenes as one of the robots bursts into flames in the arena.