Board Thread:Supergirl discussions/@comment-807326-20170207011659/@comment-4550000-20170212182624

I don't know if this was mentioned anywhere, but this episode had some similarities with The Flash episode Dead or Alive; someone from another earth (Gypsy/Armek) came looking for someone (HR Wells/Megan) in order to pay for their "crimes" (inter-dimensional travel/treason).