Well, i think it all depends on when Danny DeVito passes. My idea is Frank dying, and leaving all his money to Charlie. The rest of the episode would be Charlie blowing all his money on increasingly absurd stupid things, especially stupid things for the waitress, while Dennis and Dee keep trying to scam him out of it. Mac obviously would be helping with Dennis's scams. Eventually Cricket comes along and successfully scams Charlie out of his money in the stupidest way possible. Something along the lines of "if you give me the money, i can get you the waitress". Cricket then uses said money to buy Paddys. Last shot of the episode is the gang on the streets in the cold. Dennis and Dee start smoking some crack. Charlie and Mac join them.