Famous faces compete to pull off the best performance, with their identity concealed in elaborate costumes and their voices disguised. The celebrities are paired off into face-off performances, singing a song in their real voice. The celebrity panel and live audience vote and decide who is safe and who risks being unmasked at the end. The singer with the fewest audience votes is eliminated and unmasked.
With attacks on emergency service workers on the rise, this series uses bodycam and CCTV footage to tell the stories of brave 999ers assaulted in the line of duty.