After an artifact was stolen from The Museum of Cultural History, Mal, Evie, Carlos, and Jay find a deck of cards at the crime scene. After putting together that it was from wonderland, they sought out the help of Alice's son, Alistar Liddell.

Once they convinced Alistar to help them, he would then lead them through a forest and eventually stop at a tree with a big hole at the bottom that was covered by brush and bushes, seemingly the entrance to Wonderland.

As he says this, he jumps down the hole and the others eventually follow suit. As they fall, the walls are covered in hearts and cards and anything you could imagine that would be able to represent a place like wonderland.

Once they reached the bottom, they were met with pink, purple, green, and red trees of all sorts with a view of the Queen of Hearts castle in the distance, but, before they could process what they were seeing, the Tweedles stopped them.