Season 1 Episodes
1. Episode 1
The other group members set up a hidden-camera prank to trick Taeyeon. Tiffany, Jessica, Seohyun and Sunny are sent on a mission in the garden of a supposed 'haunted house' and run back screaming, having rehearsed earlier. Taeyeon, Sooyoung, Hyoyeon and Yuri as well as a well-known spiritual expert enter the haunted house, where Yuri proceeds to act as if she is possessed by the ghost of a young child. Taeyeon is made to participate in several rituals that will 'exorcise' the ghost.
2. Episode 2
The girls and MCs meet up at the set at a school building and pair up to have pillow fights, as an emotion exercise. The first pair are Taeyeon and Sunny who fight over their height. Tiffany and Seohyun are the second pair; Tiffany goads Seohyun but fails to make her angry. Sooyoung, Seohyun and Taeyeon then do weather forecasts while portraying different emotions or characters. Tiffany and Jessica are sent to do a horror acting test in a science lab, while Taeyeon and Sunny, then Sooyoung and Seohyun undergo horror tests in the arts classroom.
3. Episode 3
The girls split into two groups and compete by trying to make their opposition laugh by making funny expressions. They then practice their character immersion and improvisation skills by acting out several scenarios. Taeyeon, Sunny and Sooyoung then separately act out scenarios in a haunted school infirmary setting.
4. Episode 4
Lee Bumsoo joins the show. He sits unseen in the bus as the Girls' Generation members are driven to the filming location and talk about him. The girls go to a supermarket where they choose gifts to buy for Lee Bumsoo, splitting into a short group and tall group. The haunted school setting from the previous episodes is replaced with an outdoor setting at a park and a bright indoor set. Several members then have one on one acting lessons with the actor.
5. Episode 5
The Girls' Generation members have an outdoor game session, competing in several ways such as limbo and doing the splits. Several members have one on one acting lessons with Lee Bumsoo, acting out different scenarios.
6. Episode 6
The members have a ssireum (Korean wrestling) match, play a modified version of American football and fight while wearing large body-suits. The members then have to re-enact a scenes from movies or dramas while under different circumstances or interpreted in different ways.