For the first episode of Season Four, Lee Je Hoon and Pyo Ye Jin, the hero and heroine of the mega series, 'Taxi Driver', are invited. The first Whenever Guest is a high school basketball player who wants to make special memories with his teammates before graduating. The second Whenever Guests own a music instrument shop in Nagwon Arcade. To win the prizes, they must flick a guitar pick to land it in a designated area. Will they be able to win the prizes?

Choo Young Woo and Shin Si Ah visit Whenever Possible to promote their new movie, "Even If This Love Disappears from the World Tonight." The first Whenever Guest is a member of a community center dance club. They show off their teamwork of 15 years. The second Whenever Guest is a school cafeteria chef, who applied to make good memories with her colleagues before the school break. Will they succeed in winning prizes?

As this is the final episode of season four, Jea Seok is anticipating starting big stars. But contrary to his expectations, Lee Kwang Soo, his favorite junior, celebrates the last finale of the season with Park Bo Young. Kwang Soo performs unexpectedly well, but Bo Young experiences a meltdown during the spare time due to her strong sense of responsibility. Will they be able to end the season with a happy ending, giving all the prizes to the guests?