Continuity mistake: When Mitch is trying to find the hand, Glen grabs the map. When he grabs the map there is a hole in it, but before he sets it on fire, the hole is gone.
Continuity mistake: When the chuckwagon is going over the cliff, keep your eye on the orange water barrel. First the lid on it flies off, then at a different angle, it still on, then once more at a different shot, it is off again.
Continuity mistake: When Mitch goes into work he is watching one of the radio psychologists at his station live on-air. The clock in the background clearly reads 1:30, nice that he's able to start work in the afternoon one thinks, but later he addresses the company meeting "Good morning everyone".
Answer: No in-movie explanation has been given but, at the end of the first movie, Ed said that he was going to get Kim pregnant so, it can be assumed that Ed decided to become a dad and spend time with his family.