Jon Chaffin

When an FBI agent who was cracking down on organized crime is killed, McGarrett rounds up every gang-related criminal on the island to find the culprit. Also, McGarrett tasks Adam with forming a new division within Five-0 to take on organized crime.

Five-0 must locate a teen girl who purchased a gun from a junkie, and discover that the firearm, over the course of decades, has affected all of their lives.

Michael and Claudia Joy prepare for Michael's promotion ceremony. Pamela reaches a breaking point in her marriage. Roland struggles with his increase in both workload and parenting duties since Joan's deployment. Roxy stresses about the family's financial future. Jeremy continues to struggle with grieving and must deal with the consequences of his actions at the Hump Bar. Starring Kim Delaney, Sally Pressman, Brigid Brannagh, Brian McNamara, Sterling K. Brown, Wendy Davis and Catherine Bell.

Malik gets hazed.

Ben finds himself headed into orbit aboard the Space Shuttle Atlantis in 1995. Addison confides to Ian about a discovery and finds herself at odds with Magic and Jenn.