Steven Allerick

The rookies are temporarily paired with new training officers; when Nolan and Lopez track down an escaped criminal.

After failing a military training mission, the team members are determined to prove themselves when an Internet infrastructure is threatened by a bomber.

The Missing Piece. Following an injury in an industrial fire, Severide investigates an anonymous tip. Kidd searches for someone to fill the open spot on Truck 81. A possible new recruit gets tested at a call.

When an alien vessel engulfs Enterprise, noncorporeal creatures invade crew members' bodies and hijack their souls.

After they escape a riot, Travis, Liza and Chris seek refuge with the Salazars.

The team is thrown for a loop when the mummified body of a notorious music producer is found on a yacht. Meanwhile, Rosewood is forced to deal with a shocking revelation about Tawnya.