Tenax and Domitian form a racing faction and recruit Scorpus; Vespasian ponders on his successor.

Cast: Iwan Rheon, Sara Martins, Jojo Macari, Moe Hashim, Tom Hughes, Gonçalo Almeida, Dimitri Leonidas, Gabriella Pession, Rupert Penry-Jones, Anthony Hopkins, Pepe Barroso, Eneko Sagardoy, Kyshan Wilson, Alice Ann Edogamhe, Jóhannes Haukur Jóhannesson, Alessandro Bedetti, Martyn Ford, Jarreth J. Merz