Cassandra Savage is revealed as a fake defector . She uses a "Glamour Charm" to hide her healthy arm and internal nanites used to steal Justice League intelligence.

The episode is divided into three primary narrative threads:

Tigress (Artemis Crock), along with alleged defectors Onyx Adams and Cassandra Savage, travel to Santa Prisca to rescue Orphan (Cassandra Cain) from Lady Shiva and the League of Shadows.

The episode's title and Artemis’s narration are a direct homage to Frank R. Stockton’s short story "The Lady, or the Tiger?" , reflecting the impossible choices faced by the characters.

The episode reveals how Barbara Gordon became Oracle. In the Young Justice (Earth-16) continuity, Barbara was paralyzed not by the Joker directly, but by an accidental sword strike from Orphan while Barbara was trying to save her from killing the Joker.