This week, Betty White prepares her house to accommodate special guest Howie Mandel and his germaphobia, and later, Howie schools Betty in the art of fist-tapping instead of hand-shaking, with unexpected consequences. Meanwhile, her posse of senior pranksters is out on the streets, busy pulling pranks on the younger generation. An elderly man asks a stranger for advice on "manscaping," a senior enlists a man's help protecting a top secret document from people who are tailing him, a prankster shakes hands with a stranger before sharing news of the hand condition she picked up in Africa, and an affectionate senior citizen offers "free Grandpa hugs" to passersby.