When Sarah Wilson is named the new commander of a difficult military unit in Chioggia, Italy, she uproots her wife Maggie and teenage son Fraser to start a new chapter in this unfamiliar seaside town. Fraser longs for Mark, a friend he left behind in New York, and seems uninterested in connecting with the other teenagers on base – until he meets Caitlin.

Sarah is thrilled to learn about her son's burgeoning friendship with Jonathan and, grateful for a strong male influence in Fraser's life, encourages them to spend more time together – even if Maggie doesn't understand. Richard uses a father-daughter hunting trip to get inside Caitlin's head. Later, Sarah receives a phone call that will forever alter life on base.

The friend group fractures even further over their hatred for Colonel Wilson, whom they blame for a tragedy that's rocked the base. As Caitlin momentarily pauses her self-discovery journey and Danny fully commits to his, Richard's insubordination reaches a breaking point, forcing Wilson to make a difficult decision.