Resurrection of the Daleks, Part 1

S21 E11: In a deserted area of the London Docks, a group of fugitives appear from thin air, and are gunned down by two menacing policemen with futuristic weapons. The Doctor detects and then follows a time corridor, and discovers that a group of mercenaries are trying to liberate Davros from his long cryogenic imprisonment on board a specially constructed prison satellite.