Plot summary
Molly returns from her writer's workshop, much to Mike's delight. Even better, a publisher liked Molly's short story enough to give her a sizeable advance on her first book. Mike is relieved because the advance check will almost get him and Molly out of debt, but Molly ruins that when she buys a new car for him instead, leading to tension between them that is resolved when Mike's ancient car finally dies and the new vehicle is needed.
Credits
Adapted from Wikipedia contributors, Mike & Molly season 5. HTML formatting and reference markers removed.