Release Message:  Upon landing on an alternate version of the Earth, The Doctor (David Tennant), Rose and Mickey learn that Peter Tyler is apparently alive and well.

Description:  Upon landing on an alternate version of the Earth, The Doctor (David Tennant), Rose and Mickey learn that Peter Tyler is apparently alive and well. Lurking in the shadows are creatures made to destroy - one of The Doctor's greatest fears have come true...the Cybermen are reborn.