After his loss to Goku, Broly crash lands and hibernates on earth. After some time, he is awakened by Trunks and Goten, who Broly believes is Kakarott, and goes on a rampage to kill both of them. At the same time, Gohan is on his way to challenge the Legendary Super Saiyan alone.
— Description from AniList community (anilist.co).
