Teenager Liza Randall interviews Darrin about his career in advertising for a school newspaper. After Darrin takes Liza to the agency on Saturday, Liza's jealous boy friend, Marvin "Monster" Grogan, visits Samantha. Monster, a football star, wants to batter Darrin. Samantha, stuffing Monster with food, explains the innocence of Darrin and Liza's relationship although she knows Liza is more than interested in Darrin. At the office, Liza pours drinks. Liza and Darrin are doused when Darrin tries to take the drink away from her. Darrin escapes an awkward situation when boss Larry Tate arrives with two prospective clients. Meanwhile, Monster takes a romantic interest in Samantha. Darrin and Liza arrive, reeking of liquor. Darrin accuses Samantha of playing up to Monster. Samantha taunts him about Liza. However, when Monster winds up to clout Darrin, he bruises his hand on the invisible shield Samantha has created. When Liza slaps Darrin, however, Samantha lets him get the full force of the blow. Later Samantha removes her own protective shield when Darrin tries to make up.