Ep 9. The Diving Bell vs. The Butterglider

The Venture Bros. season 4 episode 9, titled "The Diving Bell vs. The Butterglider," follows the adventures of Dr. Venture and his family as they encounter a new opponent, Captain Sunshine. This episode begins with Dr. Venture receiving a call from his arch-nemesis, the Monarch, who warns him about the dangerous Captain Sunshine.

Once Dr. Venture gets off the phone with the Monarch, the family begins to discuss the new villain. The Venture family decides to confront Captain Sunshine, who is known for killing child superheroes that he has taken under his wing.

In their attempt to find Captain Sunshine, The Venture family finds themselves in a series of unexpected events, including landing on a mysterious island and encountering a tribe of people who worship Dean. Meanwhile, Captain Sunshine kidnaps Hank and takes him to his secret lair to train him as his new sidekick.

As the episode progresses, the rest of the Venture family finds themselves in a pickle as they realize Dean is nowhere to be found. After some investigation, they discover that Dean has been taken by Captain Sunshine. The family enlists the help of Molotov Cocktease, an assassin and former lover of Brock Samson, to infiltrate the villain's lair and rescue Dean.

The final scene of the episode features a dramatic battle between Captain Sunshine and the Venture family, as they try to escape his lair with Dean in tow. The battle concludes with a dramatic showdown between Captain Sunshine and Brock Samson.

Overall, "The Diving Bell vs. The Butterglider" is a thrilling episode filled with unexpected twists and turns. The episode masterfully weaves together multiple plotlines, leaving viewers on the edge of their seats until the very end.