S1·E14 Cat & Mouse

Unable to craft their own invisiblity gland, the Chinese government sets out to steal the American one. Unfortunately, they have the idea that Bobby Hobbes is the invisible member of the team. Fawkes and Hobbes go into hiding, but Bobby gets nervous. After several chases, Hobbes apparently dies in a car crash. It's a set-up, but he turns up at his own funeral to look on from a distance, and is captured there by the Chinese. The Agency tracks him to the Chinese embassy, and Fawkes goes in to rescue him. It turns out the whole operation is a ploy to lure out the real American Invisible Man. Fawkes manages to escape with Bobby before they can drain the Quicksilver out of the gland, setting the place on fire.