Introduces the night shift team to his MMA group therapy leader Colonel Elwood "Smalls" Green, who surprises the group with special greeting from the White House. Jordan and Paul help a nine-year-old boy with a serious fever. When his high-strung mother begins to exhibit signs of distress as well, the team realizes there is more to the family dynamic than meets the eye. Topher is faced with a big decision about making an emergency trip overseas to help an old mentor. TC grapples with whether to accompany him on the journey. Meanwhile, Ragosa, Drew and Krista compete for the strangest cases of the night as the full moon brings out the worst in people.

And Topher return from Afghanistan to find Jordan's life on the line and San Antonio under fire as two deadly snipers terrorize the city. TC and Scott unite to care for a comatose Jordan and her unborn baby. Drew and Gwen are caught in a fire fight when a SWAT Team corners the two snipers. Meanwhile Dr. Joey Chavez scrubs back in for the night, and he calls into question his future with Krista. Ragosa helps Paul make a difficult decision about his future. Luke Macfarlane also guest stars.