Frank's father arrives at the Gallagher's, much to his displeasure, whilst Veronica feels threatened by Karen's presence when she begins working at the pub.
高智商单亲妈妈摩根（凯特琳·奥尔森饰），重返犯罪现场大展身手。警局新队长登场+潜藏暗处的“游戏制作大师”，究竟摩根是否能对抗威胁、突破重重案件？
