Squad 3 is still trapped in the capsized boat, and things look bad.

They are eventually able to escape, but Cruz is unconscious.

Severide rescues Cruz, and Casey performs CPR.

Cruz is OK physically, but he's shaken over his close call with death.

Cruz blames it on the stress of planning a baby shower.

Herrmann and the rest of 51 throw Cruz and Chloe a baby shower at Molly's.

Boden has been promoted to deputy district chief, which means he'll be leaving 51.

After a chat with Kidd, Boden asks if he can move the district's headquarters, but he can't.

He later tells 51 they will always be a family no matter what. Kidd also apologizes for speaking out of line.

Casey and Brett try to keep their relationship on the down low, but after learning everyone at 51 knows about them, they stop hiding.

Severide tells his mother about his and Kidd's engagement, but she isn't happt for them.

Gallo, Ritter and Violet decide to come up with an idea for a side gig. After some missteps, the trio settle on starting their own microbrewery.