Dragon Ball Z: Tobikkiri no Saikyou Tai Saikyou

Following Freeza's defeat, Goku travels to Earth and joins Gohan and Krillin for a camping trip. The peace is disrupted when Cooler, Freeza's sibling, dispatches three subordinates to attack Goku. A battle erupts between the protagonists and Cooler, who undergoes a transformation into his fourth evolutionary stage and gains the upper hand. However, Goku counters by becoming a Super Saiyan.