Created by ITV Studios and produced by High Noon Entertainment, the pilot showcased contestants waiting in a "line" to enter a "vault".

Other challenges include two teams of five working as a group to move a beach ball across a track and offering random contestants the opportunity to open a red envelope that can send them to the beginning or end of the line.

[4] The series, created by ITV Studios,[5] was green-lit on July 15, 2014, with Davis and Bailey being announced as co-hosts of the show.

[6] When discussing the show's format, GSN's Executive Vice President of programming and development Amy Introcaso-Davis explained, "We have taken something most people dislike – waiting in line – and turned it into the most fun you have ever had, with cash, prizes and 500 new friends.

"[2] Additionally, Entertainment Tonight's Denny Directo applauded the show for allowing an autistic contestant to compete,[12] while Grosvenor called it "the highlight of the two hours for me.