Luke decides that it's time to cut the strings with his stuffed koala Kenny, so he gives him to Jessie, who accidentally damages him. Meanwhile, to Zuri's horror, Jessie offers to watch Stuart overnight while his parents are out of town and he drives everyone crazy.

Jessie invites Bertram's mom to visit as a surprise for his birthday. However, unbeknownst to Jessie, Bertram and his mom do not get along. Meanwhile, Ravi and Luke compete in a school egg-drop competition.