Ōban Star-Racers - Season 1 Episode 21 Ominous Like O
Overview: With the end of the grand finals approaching, Don Wei confesses that he knows Molly's true identity, and finally reveals why he left her behind ten years earlier, but Molly is not ready to make amends just yet. During the next race, a vicious attack by another racer results in a terrifying crash that may finally spell the end of the Earth Team's pursuit of the Ultimate Prize.