Two high school seniors try to adjust to adult responsibilities when an unexpected pregnancy forces them into marriage.

A new infection that simply makes people feel happy is treated as a threat by the authorities while its "victims" work to spread it to others.

Herman discovers he's the new lord of Munster Hall in England. The family sails to Britain, where they receive a tepid welcome from Lady Effigy and Freddie Munster, who throws tantrums because he wasn't named Lord Munster. An on-board romance had blossomed between Marilyn and Roger, but on land Marilyn discovers Roger's family holds a longstanding grudge against the Munsters.