A Hero's Sacrifice! Last Chance to Save the World! (バイバイみんな! これが地球を救う唯一の道, Bai-Bai Min'na! Kore ga Chikyuu o Sukuu Yui'itsu no Michi; lit. "Bye-Bye Everyone! This is the Only Way to Save the Earth") is the ninety-fifth episode of Dragon Ball Z Kai. Its Japanese air date was March 6, 2011. Its American air date was December 22, 2011.
In a desperate attempt to destroy Earth, Cell begins to self-destruct. With mere seconds left, Goku says goodbye to his son and teleports himself and Cell to King Kai's planet, the only safe place he could think of. Upon arrival, Cell finally explodes, destroying the planet and killing everyone there. As Gohan and the rest of the Z Fighters are left on Earth to grieve, Goku and King Kai realize that Cell has not accompanied them to Other World, and therefore must have survived the explosion. Using Goku's Instant Transmission technique, Cell returns to Earth, where he kills Trunks with a single blast through the chest. He then reveals that not only did his nucleus survive the explosion, but he was able to regenerate into his perfect form - and thanks to his Saiyan genetics, he is far stronger than ever before. Enraged by the death of his son, Vegeta unleashes a furious barrage of ki blasts at Cell, but is easily defeated and is only saved from certain death when Gohan intercepts Cell's blast and takes the full force of the attack. With Gohan injured and nobody left to challenge him, Cell prepares one final Kamehameha to destroy Gohan and the Earth once and for all.