Bruce is surprised when his friend Harvey Dent, the city's District Attorney, announces he has become engaged to his new girlfriend Pamela Isley. After meeting her, Bruce becomes concerned when Dent suddenly collapses in the restaurant, and doctors find he has been poisoned. As Batman, he swiftly works to find the culprit involved in this and secure the antidote needed to cure Harvey, but is shocked when he learns who it is.
