Dragon Ball: Episode of Bardock (2011) directed by Yoshihiro Ueda

A spin-off scenario taking place after the events of the TV special Dragon Ball Z: Bardock - The Father of Goku, in which Bardock survives the destruction of Planet Vegeta and is sent into the past, combating Frieza's ancestor Chilled and turning into a Super Saiyan.

Dragon Ball: Episode of Bardock, Dragon Ball Wiki

Dragon Ball Z, Dragon Ball Wiki

Dragon Ball: Episode of Bardock

Dragon Ball: Episode of Bardock (2011) — The Movie Database (TMDB)

Dragon Ball: Episode of Bardock (Video 2011) - IMDb

Dragon Ball: Episode of Bardock - Info Anime

Dragon Ball: Episode of Bardock, Dragon Ball Updates Wiki

Dragon Ball: Episode of Bardock (2011) - Trakt

Dragon Ball: Episode of Bardock