The Rizzoli's prepare for a visit from a scheming cousin.

Severide goes for an unexpected ride on Truck 81. Ritter’s worlds collide when his secret cop boyfriend helps 51 track down Severide and the missing rig.

D’arcy inserts herself into Harry’s mission, while Kate grows more uncomfortable in her own home.

A young Hollywood star dies of a mysterious overdose.

A jogger takes a nasty fall and Lt. Tao goes undercover.

A murdered Russian adoptee leads Walt to a shady underworld.

The team searches for a 17-year-old high school basketball star, Ted Soros, who vanishes the night he scores the winning basket and secures his team's position in the state championships.

When a regional air traffic controller, Neil Rawlings, goes missing, Jack and the team learn that he had been distracted recently but was otherwise an exemplary employee.

Severide goes for an unexpected ride on Truck 81. Ritter’s worlds collide when his secret cop boyfriend helps 51 track down Severide and the missing rig.

The Rizzoli's prepare for a visit from a scheming cousin.

A murdered Russian adoptee leads Walt to a shady underworld.

When a regional air traffic controller, Neil Rawlings, goes missing, Jack and the team learn that he had been distracted recently but was otherwise an exemplary employee.

A young Hollywood star dies of a mysterious overdose.

A jogger takes a nasty fall and Lt. Tao goes undercover.

The murder of a crime tech has ramifications for the team.

The Rizzoli's prepare for a visit from a scheming cousin.

Severide goes for an unexpected ride on Truck 81. Ritter’s worlds collide when his secret cop boyfriend helps 51 track down Severide and the missing rig.

A murdered Russian adoptee leads Walt to a shady underworld.

The team searches for a 17-year-old high school basketball star, Ted Soros, who vanishes the night he scores the winning basket and secures his team's position in the state championships.

When a regional air traffic controller, Neil Rawlings, goes missing, Jack and the team learn that he had been distracted recently but was otherwise an exemplary employee.

Severide goes for an unexpected ride on Truck 81. Ritter’s worlds collide when his secret cop boyfriend helps 51 track down Severide and the missing rig.

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

As Atwater finds himself distracted by a past case, a CI from his past resurfaces with a tip on a string of violent armed robberies.

The team searches for Barry Rosen, a competitive eating champion who vanishes after winning a $5,000 prize in a chili-eating contest.

The team searches for Abby Horton, a promising young artist who secretly photographed strangers who were experiencing intense personal moments and then later painted them.

Harry tags along on Ben, Kate and Max’s family trip, hoping the mayor will lead him to answers.

As Atwater finds himself distracted by a past case, a CI from his past resurfaces with a tip on a string of violent armed robberies.

Deathstroke hits Oliver at home.

Roy spins out of control on the Mirakuru.