Andy Cameron

Severide agrees to a bone marrow donation; Casey and Dawson attempt to find harmony at home; Otis and Mouch plan to create a PSA to encourage people to join the Chicago Fire Department.

The members of Firehouse 51 and the Austin firehouse clash when trucks collide on the way to a call; Boden comes up with a plan to get Dawson her badge; Mills faces his past and future; the Molly's group hits a speed bump starting the food truck.

When Martin's fear of blood becomes common knowledge, the practical jokes begin. Tourist season commences, and Martin shocks one buxom visitor by offering to examine her chest. Later, an emergency compels Martin to confront his phobia.