Cory's daughter finally has her heart surgery; Cheyenne has a health scare with Ryder; Catelynn and Tyler have a talk with Nova about body safety and physical boundaries
Catelynn and Tyler are ecstatic when they find out they can see Carly, whom they placed for adoption 14 years ago, but family drama puts visit on shaky ground.
The emotional reunion continues in part two as more moms join Nessa and Dr Drew; Catelyn discusses latest on toxic fallout with her family, and "Teen Mom" fans weigh in with questions of their own; Dr Drew has a one-on-one with Ryan.