Deep Blue Sea ("Buru Shougun Kougeki Kaishi!!", lit. "General Blue Begins His Attack!!") is the 3rd episode of the General Blue Saga in the Dragon Ball series. The episode first aired on Januray 28, 1987.
After General Blue is given the message, he immediately calls for his men. He splits his soldiers into two groups. As he will lead Company A to go after Goku, he orders Company B to invade the island.
Meanwhile, at the Kame House, Master Roshi is up to his perverted tricks as he shrinks himself using Bulma's shrink watch. But Launch accidentally vacuums the small old man while cleaning the bathroom.
Krillin drives the machine to the cave, and General Blue notices them as they find a cave. The Army fires several torpedoes. They all hit the nearby rocks, as it startles Goku, Krillin, and Bulma. As Krillin drives the machine into the cave, General Blue's gang travel in small submarines and go after them.