When a teenager is found murdered on a building site, Grissom and Sarah follow up a lead of blood on a hammer. Nick and Catherine investigate the murder of a woman who was killed with a shotgun on her lawn.
Sammy tries to make amends after the murder of a young man who agreed to testify in one of his cases. John and Jessica find themselves babysitting a documentary film crew. And Lydia is ordered to put on her uniform and serve as shift supervisor for the day – but the job could be more than her body is able to handle.
The group finds out about the shocking marriage of Adam and Heather, while the newlyweds try to decide if they did the right thing. As a way for Brian to forge a romantic connection with a reluctant Bridget, Dave suggests that he get her to participate with them in a speed dating event at Ivy's bar. Meanwhile, Nicole immerses herself in Deena's fledgling cupcake business to distract her from her grief.
Needing money, Brian starts a job at his father's high-end real estate firm, and sparks fly when he meets the company's top agent, the beautiful.
Brian continues to wonder if his relationship with Bridget is right for him, Dave feels left out when Natasha asks only Brian to make a presentation to Japanese clients, and Adam goes out on a date with Brian's neighbour Stephanie.
