5x18 - Dragon Ball Z: Dragon Box

The final battle of Gohan and Cell, wherein they clash at full power, has begin! Cell is unable to match Gohan's speed, and all of his attacks are dodged. Cell panics, and hits Gohan with a full-power punch. However, Gohan withstands the blow, and responds with his own strike. In just two punches, Cell is left kneeling on the ground!!