Vegeta has the upper hand in the battle with Cell, but his pride will be his downfall. Cell throws down an irresistible challenge to Vegeta: allow Cell to absorb Android 18 and become complete, and then fight Cell in the ultimate challenge. Despite Trunk's warnings, Vegeta falls for it.
Android 18 should have been deactivated by then, but Krillin is starting to fall in love with Android 18 and does not deactivate her. Instead she ends up being absorbed by Cell who becomes Perfect.
Goku and Gohan continue to train, while Vegeta picks up the challenge of fighting Perfect Cell only to be defeated. Trunks jumps in to give Krillin a chance to rescue Vegeta. Trunks has amazing power and strength beyond the strength of Cell. But it takes more than strength to win a battle. He has traded speed for power and cannot catch his enemy. Cell defeats Trunks but gives our heroes another chance. Cell is going to host a World Martial Arts Tournament in 10 days where he will fight each of Earth's warriors, including Goku.
