Dragon Ball Z: Volume 4

As the cosmic battle between Goku and Vegeta continues, Goku is forced to use the dangerous Kaio-ken technique.

But Vegeta reappears, changing himself into a 50-foot ape with superpowers, including energy strong enough to explode mountains. As Goku lies with his ribs shattered, his – and earth’s – only hope is the genki-dama, the “spirit bomb” powered by the chi of all living things on the planet.