To save Primus's energy in Primax 797.18 Epsilon from the megalomaniacal Predacon criminal Cryotek, Sentinel Maximus grabbed ahold of Cryotek and sent the both of them through a Quintesson portal into a dimension of nothingness. There, Maximus and Cryotek prepared to continue their fight, but Primus decreed that Maximus was needed elsewhere and transported him to Aurex 405.0 Epsilon, where the Unicron Singularity crisis was occurring