An emotional homecoming is easier for some than others. Big John searches for the diary. Ward's plans for a prized possession don't sit well with Rafe.

Sarah convinces an old friend to help with a high-risk, high-reward mission. Looking to access a museum collection, John B and his dad get creative.

Secrets threaten to drive a wedge between John B and his friends. Sarah revisits a past life. Pope reaches a breaking point.

With their ride to Orinoco waiting on the tarmac, Kiara and JJ run into several complications. Rafe has a change of heart.

The Pogues' search for El Dorado brings them deep into the jungle, where John B and Sarah face the ultimate test of their courage and family bonds.