Damnation (2017)

S2E21 Apocalypse Not

Title: Apocalypse Not Plot: As the Halliwells attempt to eliminate the Four Horsemen of the Apocalypse, a spell misfires, ensnaring Prue and one of the Horsemen in a swirling vortex. Meanwhile, Piper and Phoebe must team up with the remaining three Horsemen to rescue Prue and the trapped Horseman before the vortex seals shut, potentially leading to their demise. Time is running out, and the sisters must navigate this unexpected alliance to save their own.