 The Doctor revisits Cardiff to drop off Jack Harkness in "Last of the Time Lords".In "The Stolen Earth", the Torchwood Three team and supercomputer "Mr Smith" use the energy of the Rift to send a signal to the Doctor through the Medusa Cascade.Later, in "Journey's End" the Doctor uses the Rift - after Mr Smith has interfaced with the TARDIS to allow it to lock on properly - as a towrope to literally ”tow” the Earth back to its proper location in time after it was stolen by the Daleks.