The King of Queens Season 5 Episode 20

Danny asks Doug for a letter of recommendation at IPS so he can move up to being a driver like Doug. Since this idea does not appeal to Doug, Carrie decides she will write the letter and have Doug sign it. Danny ends up getting the job and puts Doug’s skills to the test, and his job on the line, when his ability to beat Doug’s delivery time has the boss giving Danny Doug’s route.