2. Contested Waters

While transporting the 31st MEU, Navy vessels encounter a foreign spy ship. Later, the Marines continue CERTEX to test their skill, unity and resolve.

3. The Last Scout Sniper Platoon

As the Scout Sniper platoon faces an uncertain future, the 31st MEU carries out its most demanding exercise yet: a beach raid under cover of darkness.

4. The Few, the Proud

The USS America and USS Green Bay head to port — until global events demand a sudden change in mission. At home, several Marines consider what's ahead.