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.

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.