Time Force

The  was a destructive mass of blue particles that was unleashed in the aftermath of the Flux. It was the natural result of time running wild and was caused by the breaking of four of the Mouri, who maintained the flow of time from the Temple of Atropos on the planet Time. Two were broken through unknown means according to the Priest Triangles, whereas a further two were disintegrated by the Ravagers Swarm and Azure to be replaced with Yasmin Khan and Inston-Vee Vinder.

Much like the Flux, the Time Force destroyed all it came into contact with. It was encountered by Bel on a Dalek-invaded planet, and by Dan Lewis during a time storm in his time stream inside the tunnels dug out by Joseph Williamson in 1820 Liverpool.

Although the Mouri were replaced in an attempt to undo the damage done to time, at first temporarily with Yaz, Vinder, Dan and the Thirteenth Doctor, and then permanently with four Mouri hidden inside a Passenger, it was too late as the Ravagers had already harnessed particles of the Time Force for their own goals. (TV: Once, Upon Time)