When Bobby falls from a tree and sprains his ankle, he devolops a fear of heights. This prompts the Brady family to try to cure his fear.

After taking the wrong bike from school and when her grades begin to slip, Jan learns she may need glasses. Meanwhile, Mike's anniversary gift to Carol is a portrait of the six kids. The trick is getting the kids to the photographer without Carol finding out.

The principal calls home to alert Mike and Carol to the fact that Bobby's playing Jesse James at school. This leads Mike and Carol to learn just how obsessed Bobby about his "idol" and try to dissuade him from worshiping a cold hearted killer.

Peter's new detective kit comes in handy when Cindy touches and then looses a pair of antique earrings that Marcia was borrowing from Carol that she warned her not to touch. This leads Peter and Cindy on an all out search for the missing earrings.

Greg has finally landed a date with Sandra but he will only be able to go out with her if he can get a date for her visiting cousin, Linda. He turns to the last resort, he gets Peter to wear a fake mustache and act as if he were an older man.

Mike has to present some plans for an addition at King's Island, an amusement park in Cincinnati, so he invites the whole family along but when a mix-up occurs Mike is left with a Yogi Bear poster while Jan is left with Mike's plans which she loses on one of the many rides in the park.