The World's Strongest Team - DragonBall Z
When Raditz takes Goku's son and leaves (as we saw on the arrival of raditz episode) Goku's intention is to go and get Gohan back home, but he knows very well that Raditz is way to strong for him. While Goku is discussing with his friends if he should go after Goku right away or not Piccolo reaches the island of master Roshi and proposes to Goku to fight Raditz together with him.
Once enemies, Goku and Piccolo, are forced now to become friends to fight a bigger and stronger enemy, Raditz. During the talk Goku reminds other how weak he was when someone would grab his tail, that way he finds out Radtiz's weakness, the tail indeed. They both head over to find Gohan, who has one of the dragon balls on his hat which helps Goku and Piccolo to localize him.
Raditz has closed Gohan in his own space shuttle as he was crying too loud. He feels the power of Goku and Piccolo getting closer and closer to him. When they land down a really great battle starts between Goku, Piccolo vs Raditz. Teamed up Goku and Piccolo start fighting with Raditz..but rather then explaining the battle I would recommend you watching this episode in the video located above.
