Complex sentence: Gorman and Eli pose as Jehovah's Witnesses to gain entry to the Conehead home, but they are ejected quickly when Beldar receives word that their rescue vessel is on its way.
Split into simpler sentences: Gorman and Eli track the Coneheads down to their home and pose as Jehovah's Witnesses to gain entry to the Conehead home. Beldar then receives word that their rescue vessel is on its way.