Raven has a problem with her visions, and considers having them removed permanently. Meanwhile, Chelsea tries to sell Champignon shampoo and Dr. Sleevemore tried to figure out the source of Raven's messed up visions. While watching the flashback episodes, Dr. Sleevemore is curious about what caused Raven to swell up. Raven answers she ate a mushroom as she is super allergic to mushrooms.
Dr. Sleevemore finds out the truth. It turns out that Raven has been using the Champignon shampoo Chelsea has been selling. In French, "Champignon" means "mushroom." The shampoo is making part of her brain have weird visions since she is allergic to mushrooms.
- Raven-Symoné as Raven Baxter
- Orlando Brown as Eddie Thomas
- Kyle Massey as Cory Baxter
- Anneliese van der Pol as Chelsea Daniels
- T'Keyah Crystal Keymáh as Tanya Baxter (absent)
- Rondell Sheridan as Victor Baxter
- The episode has a scene from the next episode as the season finale. This is a display error since the episode only aired ten days after this episode - this is due to the episodes not airing in production order.
- The title is a spoof on the Mission: Impossible film series.