Defeat Freeza, Son Goku! The Proud Vegeta's Tears Dragon Ball Kai: Doragon bôru kai : Season 1 Episode 42

Goku arrives at the battle scene only to find Vegeta battered and badly beaten. With his dying breath, the Saiyan prince reveals the truth about Frieza's roll in the death of Goku's father, prompting a fierce outburst of Saiyan pride!