In a parallel 2020, Prince Arthur moves out of home with flatmate Merlin when a mysterious plague spreads across the land and sends Camelot into a lockdown. Uther is quick to blame sorcerers, Arthur needs to decide if he supports the king, and being in lockdown with the prince means Merlin really needs to keep his magic a secret. Both are left to ponder questions we might have had in recent times: - How am I going to stay in all day? - Am I kind of boring for being almost unaffected by this? - Should I trust a flatmate to give me a lockdown haircut? Either way, Merlin and Arthur are mostly stuck at home -and with each other- catching up on some soul-searching. Indefinitely.