Jeff Burton

Steve (Fred MacMurray) gives Chip (Stanley Livingston) a well-preserved secondhand car for his birthday.

Samantha finds that a neighborhood playground, leased to the city for $1 a year, is to be razed for a supermarket. Darrin encourages Samantha to organize a protest. When a bulldozer bears down on the mothers and children, Samantha twitches the vehicle and its driver out of action. Harlan Mossler, grandson of the park's donor, plans to jail the women if they interfere again. At the office, Larry Tate congratulates Darrin on a supermarket presentation. Shocked to learn Mossier owns the parkland, Darrin tries to talk Samantha out of further protests. Larry confronts Darrin with newspaper headlines and assures Mossier that Darrin will order Samantha to back down. However, Darrin takes Samantha's part and rushes to give her moral support. After Mossier declares Darrin's job is at stake, Samantha decides to withdraw. However, Darrin insists she keep up the fight, even after Larry fires him. Inquiring what Col. Mossier would do, if he knew the park was being closed, Samantha twitches his statue to life. Col. Mossier orders his grandson to put the shopping center somewhere else. Shaken, Harlan rededicates the park to the children and gives Darrin all the Mossier advertising accounts. Samantha herself is confused when the statue breaks into a wide smile.

Preparing for a Canadian tour the Family must have their birth certificates. The attic produces certificates for all except Danny, his is not to be found. When introduced to the Family, booking agent Marty Burns jokingly refuses to believe Danny is a Partridge, "not with that hair and those ears," and Danny is convinced he is an adopted child. Shirley tries hard to talk him out of his belief, but Reuben and the others, in trying to kid Danny about his origin, only confirm his opinion he is not a Partridge. At the hospital where all the others were born Danny finds there is no record of his birth. Heartbroken, he refuses to believe Shirley's story that he was born unexpectedly while the family was on a picnic and thus missed the "regular" hospital. On a return visit to the hospital Danny learns the name of the one male child born there on his birthday, a son to a Mr. & Mrs. Young. The phone book provides the names of all the M. Youngs in the city and Danny takes off to find his parents. There ensues a series of very strange confrontations between Danny and his "father." One, Mike Young, a construction worker and single, tells Danny he would have had to be born in Korea. Then Danny meets a priest; an old man wielding an ear trumpet; a widow who produces a ten year old M. Young, and catches with another in the cemetery. Meanwhile, Shirley and Reuben have contacted the hospital and learned what Danny was doing. They find him at the last address on his list and watch while he rings the doorbell, which is answered by a handsome young black man. Later, a happy Danny admits he has made two mistakes; one, thinking he was adopted and two, not realizing that to be adopted by the Partridge Family would be the greatest compliment anyone could ever be paid.

Darrin has just successfully signed the currently popular singing team of Boyce and Hart for a client sponsored special on television. He arrives home jubilant to find Samantha's cousin, Serena, visiting. Serena has been elected the chairman of the Cosmos Cotillion, an annual dinner dance of the "witch set," and must find some unique entertainment for the affair. After listening to the Boyce and Hart record that Darrin brought home, she decides that they will be perfect for the Cotillion. Samantha tries to talk her out of the whole idea, but to no avail. Serena goes to talk to Boyce and Hart and their manager, Chick Cashman. She quickly interests Chick Cashman in her offer, as she says she will pay three times their usual fee. However, when she tells them they will sing a song composed by her, they think she is a fake and throw her out.

Kimble accepts a job as a custodian at a private boy's club, and finds his boss is an ex-cop.