Return of the Imaginary Friend is the tenth episode of the third season of the animated series, Martin Mystery. It was originally released on October 21, 2005.
Martin, Java and Diana investigate three missing teenage girls who are being captured by an old friend's teddy bear who is turning them into doll replicas.
In a village of Dorchester, a young girl, Emma was playing tennis alone, then she discovery that her friends don't hang around with her anymore so she wish that she things would how it use to be when they were young. Her wish was granted by a living tiny bear, Teddy.
Back at Torrington Academy, Martin was doing his experiment project but which blow them up, then Diana show tells Martin that he couldn't do anything. Continuing their arguing M.O.M. ask them to investigate on a missing teens. The gang find out that the bear who was responsibly for the missing teens.
When Diana discovers that Kevin, an old nerdy friend of her from camp when she was 8 and kept pen paling, is coming to visit her she had a hard time trying to figure out a way to turn him down easily.
- Debby Clark
- Teddy (imaginary friend coming to life)