Danika McKellar, Adam Sadowsky and Michael McMillian appear, as the twelve new nerds compete for the 0,000 prize, by creating Rude Goldberg devices, going deep into the world of Steampunk and Anime. Two of the nerds face elimination, with the Nerdzilla been the only one who can save them.
Cosplayer Ya Ya Han returns to judge with actress Tara Strong; one team gets tossed into Mount Doom; alliances form and a Nerd Off with some Knights.
When the nerds travel back in time one nerd reveals a barbaric side; a dark cloud threatens Nerdvana's party attitude.
Nerd Anthem is back and the secret alliance's survival is at stake; one nerd gets into a fight with guest judge Moby and things get awkward.
Nerds go off the rails and when Rachelle offers herself as tribute the Secret Six implodes; one nerd is unable to survive the fallout of the Nerd Off.
The nerds must solve what monster is behind Pom Pom Kitty's disappearance; a master strategist struggles with loyalty; the teams are disbanded and must continue alone.
The remaining nerds find themselves being hindered by an alien queen. Some acid melts the face of one nerd.
Having survived plenty of nerdy challenges, a king or queen is crowned.