The Green Hornet Strikes Again! is a 1941 Universal black-and-white 15 chapter movie serial based on The Green Hornet radio series by George W. Trendle and Fran Striker. It is a sequel to Universal's earlier serial The Green Hornet (1940). This was the 117th serial (the 49th with sound) of the 137 that Universal produced. The plot involves racketeering and is unusual for a movie serial by having mostly stand-alone chapters instead of each running into the next; this was also the case for Universal's first Green Hornet serial.