Ben 10 S3E22 · King of the Castle

Ben 10

Season 3 · Episode 22 · King of the Castle · 11 min

Team Tennyson finds out about their British ancestry, so they visit their relative's estate, but mysterious events convince Ben that the place is haunted. However, it turns out that Kevin Levin has followed them to Britain, and showcases three new alien forms based on those Ben has lost: Thornblade (Wildvine), Undertow (Overflow), and Dark Matter (Grey Matter).