The duo uses the Mother's Day holiday to strike, specifically targeting Patrice Evers (the mother of Detective Angela Lopez's husband, Wesley). They steal a highly sentimental necklace given to her by her late husband.
Nyla Harper's bitter ex-husband, Donovan, deliberately attempts to keep her daughter Lila away from her on Mother's Day out of spite. He drops Lila off at his mother Maris' house instead. [S4E21] Mother's Day
Officer John Nolan voices his ambition to finally become a Training Officer (TO). The duo uses the Mother's Day holiday to
Maris recognizes that her son's behavior is cruel and disproportionate. She subverts his plan by bringing Lila directly to the police station so Nyla can see her daughter. Relationship Milestones [S4E21] Mother's Day