The squad investigates when a severed human foot is found.

Upton becomes consumed with a decades-old missing persons case linked to Petrovic after a young child shows up to the district seeking help.

Alec takes a case involving a young burn victim and arson that forces him to confront some trauma from his past. Phoebe and Rizwan compete for an important research grant.

The possible gang war ratchets up a notch with more murders.

Sharon forces her way forward to the truth.

A terrible accident puts things into perspective.

The team searches for a missing 5-year-old boy, Todd and his father, Randall after being tipped off by Todd's 12-year-old brother that Randall had kidnapped Todd.

Elena goes undercover as an exotic dancer at a club where a missing stripper, Cindy Peterson, worked, while Danny poses as one of her customers.

Upton becomes consumed with a decades-old missing persons case linked to Petrovic after a young child shows up to the district seeking help.

The squad investigates when a severed human foot is found.

A terrible accident puts things into perspective.

The team searches for a missing 5-year-old boy, Todd and his father, Randall after being tipped off by Todd's 12-year-old brother that Randall had kidnapped Todd.

Elena goes undercover as an exotic dancer at a club where a missing stripper, Cindy Peterson, worked, while Danny poses as one of her customers.

The possible gang war ratchets up a notch with more murders.

Sharon forces her way forward to the truth.

Maura is terrified after Jane jumps from a bridge.

The squad investigates when a severed human foot is found.

Upton becomes consumed with a decades-old missing persons case linked to Petrovic after a young child shows up to the district seeking help.

A terrible accident puts things into perspective.

The team searches for a missing 5-year-old boy, Todd and his father, Randall after being tipped off by Todd's 12-year-old brother that Randall had kidnapped Todd.

Elena goes undercover as an exotic dancer at a club where a missing stripper, Cindy Peterson, worked, while Danny poses as one of her customers.

Upton becomes consumed with a decades-old missing persons case linked to Petrovic after a young child shows up to the district seeking help.

Ripley and Charles treat members of a cult. Zola's suspension takes an unexpected toll on Crockett. Dr. Abrams' 5-month-old son lands in the E.D. under questionable circumstances.

Maggie's budding romance takes flight; after a woman's shocking suicide attempt, Charles searches for answers; Asher works to diagnose a patient who is new to the city and appears with mysterious symptoms.

Jack and the team search for a missing 911 operator, Jessica Lawson.

The team searches for a 15-year-old prisoner, Malia Norton, who disappeared from a girls' detention center after receiving a life-threatening note.

After witnessing a hit and run during a friend’s livestream, Alec and Kylie aim to prove it wasn’t an accident. As Marisa and Jace continue their investigation into the church bombing, they turn their sights on a prominent senator.

Maggie's budding romance takes flight; after a woman's shocking suicide attempt, Charles searches for answers; Asher works to diagnose a patient who is new to the city and appears with mysterious symptoms.

Arrow hunts down the mad bomber Shrapnel.