Tiny Woods is the first dungeon in Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team. Immediately after the main character wakes up, a Butterfree appears and panickedly explains that her baby, Caterpie, fell through a fissure and into the Tiny Woods. Since Butterfree isn't strong enough to go on her own, she requests that the main character and their partner rescue Caterpie by clearing the dungeon. Afterward, Butterfree gives the pair an Oran Berry, a Pecha Berry, and a Rawst Berry in reward.
All rescue missions that can be accepted for this dungeon are rank E. No Pokémon can be recruited in this dungeon.