Dragon Ball Kai - episode 45 - 20 Feb, 2010

Ginyu tries to steal Piccolo's body, but is foiled by Gohan, who throws the frog body containing Bulma's spirit back in the way, putting Bulma back in her own body and once again trapping Ginyu in the frog body. Meanwhile, Goku continues to be thrashed by Frieza. However, when Frieza attempts to drown him, he sees a vision of Frieza destroying everyone he loves - and as a result, he breaks out and uses the 20-times Kaio-ken alongside a massive Kamehameha against Frieza, who retaliates with his own blast, which leads to their energy beams being cancelled out. However, even this is not enough to defeat the tyrant, as Frieza barely suffered any injuries from their energy clash, and the use of the 20-times Kaio-ken severely weakened Goku. After taking another beating from Frieza, Goku then has another vision, this time of Vegeta and other Saiyans of the past, reminding him that should he fail, Frieza will finally succeed in exterminating the entire Saiyan race. Motivated once again, Goku stands his ground as an enraged Frieza lunges at him. (Source: Wikipedia)