Dragon Ball Z (1989)

S6E4 No Worries Here

As the countdown to Cell's tournament ticks down to nine days, Vegeta, Piccolo, and Trunks prepare to head back into the Hyperbolic Time Chamber for more training. However, Goku feels differently, insisting that he and Gohan have reached their limit with training. What insights does Goku possess that the others are unaware of?