The Y'Lyntian outpost first appears in the 2003 series. It is the Turtles' second lair after their first one is destroyed during one of Baxter Stockman's first Mouser experiments. The outpost is located directly underneath a warehouse on the corner of Eastman and Laird, a reference to the creators of the Turtles, and has an elevator going up to it. This lair is finally destroyed by Karai as part of her vengeance against the Turtles, forcing them to move to the Reservoir Station beneath Central Park. They later return to the outpost to meet with their enemies and allies to battle the Demon Shredder.