I Do! is the fifteenth and final case in Zootopia: Crime Files. This case involves the theft of a bride and groom's wedding rings.
- The case's name refers to the words, "I do", the phrase spoken by the bride and groom agreeing to their marriage during a wedding ceremony.
- The true criminal mastermind behind the flooding of Zootopia and the previous crimes is revealed.
- The identity of the bride and groom is never revealed.
- This is the final case of the game.