Cell has fused with android 17, becoming the strongest being in the universe - but not for long! Training in the Room of Spirit and Time, where a year passes for every day outside, Vegeta and Trunks have gone beyond the Super Saiyan, reaching a level of power even greater than second-stage Cell!
Now, Cell is no match for Vegeta - but Vegeta hates a boring fight. Succumbing to his pride, he agrees to help Cell fuse with android 18, the last element Cell needs to become "perfect", so he can crush Cell at his maximum power! But Vegeta's battle-lust may spell the end of the world!
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Dragon Ball Z>