The triplets have gone to the flea market with their dad! They have become merchants and start selling their goods! Will they be able to earn a lot? Announcers Park Jiyoon and Choi Dongseok have visited the twins with their children! Hwijae falls in love with Dain and the twins get really jealous! Donggook takes the twin girls and Daebak out to the playground! He can even push two swings at the same time and he exercises with Daebak! Saebom's puppies are finally born! Jion's family have a party to celebrate this event! This is their last episode in The Return of Superman.