Three teams head for the finals. Ashley, Rodrigo and Shivani of "The Dork Side" will face Treasure, Sebastian and Apoorva of "The Fast and the Curious," along with Michi, Jackson and Ugochi of "Geeks on Fleek." In the Human GPS round, finalists memorize the constellations. One team is eliminated and two will face off for Extreme Number Cruncher and then a complex Talking Dictionary. Ultimately, the teams take on the toughest Cortex ever.