Sea Devil Earth

The Sea Devil Earth was an alternate timeline in which the Sea Devils had conquered Earth shortly after being awoken at the Raven Peninsula in 1903 by the Skithra. (COMIC: Alternating Current) It came into existence due to a temporal paradox that occurred in 1969 after an encounter between the Tenth and Thirteenth Doctors. (COMIC: A Little Help from My Friends)

In this timeline, Peter and Jackie Tyler still married and had a daughter, Rose. They remained slaves of the Sea Devils whilst Rose joined freedom fighters opposing their rule. (COMIC: Alternating Current)