DBZK Episode 35

Goku's Comeback! Call Forth Porunga is the thirty fifth overall episode in the Dragon Ball Z Kai series. The original Japanese title is "Gokū Dai-Gyakuten!? Ima Koso Ide yo Chō-Shenron!" (悟空大逆転！？今こそいでよ超神龍！). The episode first aired on December 6th, 2009. It's original American air date was July 29, 2010.

Summary

Porunga, the Namekian Eternal Dragon!

After killing Jeice, Vegeta sets his sights on Ginyu (still in Goku's body). Vegeta effortlessly pummels Ginyu, and an attempt by Ginyu to get Vegeta's body is thwarted by Goku who intercedes, leaving Ginyu back to his original body and Goku in his. Ginyu tries again to switch with Vegeta, but Goku throws a Namekian frog in the path, leaving Ginyu in the frog's body. Vegeta places Goku in a rejuvenation tank inside Frieza's spaceship, gives armor to Krillin and Gohan, then falls asleep. Meanwhile, Nail continues to fight Frieza to stall for time. Nail eventually reveals this to Frieza and the enraged tyrant immediately charges back towards his spaceship. Krillin, Gohan, and Dende take the Dragon Balls away from the ship while Vegeta is still sleeping and summon Porunga, the Eternal Dragon of Namek.