S1.E4 ∙ Poland

Robert Hall tells the little-known story of the French resistance's battle to stop a German division reaching the landing beaches.

Former Navy SEAL Andy Stumpf rates nine underwater missions in movies and television for realism and accuracy, discussing underwater scuba-diving scenes in "Mission: Impossible - Rogue Nation" (2015), "Tomorrow Never Dies" (1997) and "National Treasure" (2004). He also discusses discharging guns and other weapons underwater in "Thunderball" (1965), "Alien: Resurrection" (1997) and "Act of Valor" (2012). Stumpf also analyzes proper diving technique in "Archer" (2009), "Sanctum" (2011), and "For Your Eyes Only" (1981).

In the aftermath of the 2006 war, the Beirut Marathon Association chose not to cancel their event, but rather to hold it as a testament to Lebanese resilience. Despite devastation and political upheaval, the marathon took place with 22,000 people, in solidarity, running or walking the 5 km, 10 km and 42 km races with 'For the Love of Lebanon' as the theme.

Remi Adeleke, a former Navy SEAL, currently an actor and filmmaker, served in Naval Special Warfare and with SEAL Team 3 from 2002 to 2016. Adeleke breaks down the realism of SEAL Team scenes in movies and TV, from training to special operations, intelligence gathering and data collection, rescue operations, and direct combat. Movies Adeleke rates include "The Rock" (1996), "Tears of the Sun" (2003),"Captain Phillips" (2013), "Act of Valor" (2012), and "Navy SEALs" (1990). He comments on training scenes in "Lone Survivor" (2013) and "GI Jane" (1997). Adeleke also breaks down real-life raids and rescues in "Zero Dark Thirty" (2012), and "13 Hours: The Secret Soldiers of Benghazi" (2016).