Rules of Engagement Season 4 Episode 13 They Do? ( Air Date 2010-05-24 ) Genre Comedy category. Overview "Adam and Jennifer plan a secret wedding; however, a series of unfortunate events puts their plan in jeopardy. Meanwhile, to keep Russell and Timmy from finding out about the ceremony, Adam tells them he is staging an intervention for Jeff, on the fourth season finale of RULES OF ENGAGEMEN.".