While he was visiting Lone Pine Mall, Walter Wisdom came across Marty and Verne. He went back to Doc's laboratory, where he found the DeLorean time machine. Doc chased him out of the lab with a Heat Seeking Rat Trap, however Wisdom returned to the lab later that evening. He stole the DeLorean, a Rainy Day Sunshine Umbrella, a machine that makes peanut butter inside the shell, the Memory Archive Recall Indexer and Enhancer with intent to sell them all and make himself a profit. He took the DeLorean to Ancient Egypt, only to find Doc, Marty, Jules and Verne in hot pursuit in the Time Train. They linked the DeLorean to the Train by means of a Time Tow Linkup system, and became dragged to the Island of Krakatoa on the morning of August 26, 1883. Wisdom disconnected the DeLorean from the Train,