Whilst Ursula and Michael rightly think the Nekross should be allowed to die Benny inexplicably feels compassion and he and Tom head for the stone circle where Tom uses very strong magic to teleport his friend onto the Nekross ship. This knocks him unconscious but Ursula casts a spell to revive him. Benny saves the Nekross who inevitably show their gratitude by trying to kill him but he transports himself back to Earth and joins the others at the stone circle.
—don @ minifie-1