Tarek and Christina revisit their most intense, interesting, and engaging house flips. Because there's never enough time to tell the whole story in every episode of Flip or Flop, this series is an opportunity to dig deeper into the trials and tribulations of house flipping, and to find out what actually happened behind the scenes of the renovations. We'll also follow up on houses that remained unsold at the time of production - revealing now what they ended up selling for, and if Tarek and Christina actually made or lost money..