7x2 - Dragon Ball Z: Dragon Box

As a result of Boo's acts of destruction, roughtly 80% of the earth's people are dead, but the hope of the survivors, Mister Satan, heads off to put a stop to Boo! Satan reluctantly arrives at Boo's house, and while pretending to ingratiate himself to Boo, he uses petty strategies to try to defeat him. With the future of the world at stake, will Mister Satan's master plan save the day?