Cyborg and Impulse return to SMALLVILLE
Here's how the episode is described: "The Green Arrow, Impulse, Aquaman and Cyborg try to destroy LuthorCorp's secret laboratory, but Impulse (Kyle Gallner) is captured and tortured by Lex, prompting the others to joins forces as a team to rescue him. Green Arrow: Justin Hartley. Aquaman: Alan Ritchson. Cyborg: Lee Thompson Young."