After believing a large tree branch as used by a prowler to try and break into the house one night, Reba decides she, Cheyenne, and Kyra need to take a self defense course and is soon unhappy when she finds out Barbara Jean signs up for it too. It soon doesn't take long for the ladies to get on one another's nerves so bad that chaos ensues during their learning experience. Meanwhile, Brock and Van decide to install a home security system and tell Jake to come up with the security code. Their only problem is that Jake won't share what the code is with them.