Watch The Challenge Season 38 Episode 4 -

Nelson’s win forced him to nominate four teams for potential elimination. Following the "Dagger Pull" format, the ultimate showdown in "The Zone" featured against Kim & Colleen .

Fessy Shafaat hooked up with Colleen Schneider, while Nelson and Olivia Kaiser grew closer. Watch The Challenge Season 38 Episode 4

Kim and Colleen won the elimination, securing their spot in the house. Nelson’s win forced him to nominate four teams