The Masters of Evil - Avengers: Assemble (S2:E9)

Basic Info
The Masters of Evil is the ninth episode of the second season of Avengers: Assemble. It is the episode setting up the season 2 finale and features the episode's namesake, the Masters of Evil, as the main antagonists.

Synopsis
After going silent for a week after stealing the Disintegrator gun, Baron Zemo returns to face the Avengers. Along with Zemo is his entire Masters of Evil team, both past and present, proving more than capable of handling the team of heroes. It soon becomes clear that Zemo isn't the Avengers' only threat though. Someone has been pulling at the teams' string this entire time.

Trivia

 * This is the climax of the Masters of Evil arc in Avengers: Assemble. The team of villains have always managed to pop back up, but in this fight only one team will make it out.
 * This episode serves as the setup to the season 2 finale.