Yu-Gi-Oh! 5D's - Season 1 Episode 37 Digging Deeper (1)

Jack decides to return with Mina to the city to retrieve his Duel Runner. He thinks it is too dangerous for Carly to get involved but promises to tell her everything when it’s all over. Carly, wanting to maintain her contact with Jack, decides to look into Akiza and the Arcadia Movement, and finds out Misty is somehow linked to them and goes to meet her. She reveals that Akiza was apparently responsible for the death of her younger brother.