In Morocco, Wash reunites with Titch and discovers his father's true legacy.

Wash urges Medwin to fight for love, then joins Tanna and Goff in London; at the Royal Science League, betrayals surface and a reunion at the Wilde estate unveils a powerful truth about Wash's past.

Pursued by Willard, Wash faces a life-changing decision. As tensions rise between Tanna and McGee, Young Wash must carve his own path on a perilous Arctic journey.

Young Wash and Titch dodge capture, uncovering allies, threats, and truths about Titch's family; in Halifax, Tanna's plan backfires, straining ties with Wash and Goff; as Wash's aquarium impresses, danger tests loyalty and ambition.

Young Wash, Titch, and Theo head to Virginia to confront truths about Titch's father; in Halifax, Tanna's plan to sabotage her engagement backfires; Wash's daring dive to impress Goff brings both danger and a chance for something greater.

As Wash confronts his past, his bond with Tanna grows, but is tested by her engagement to McGee; betrayed and attacked by bounty hunters, Medwin, betrayed and under attack from bounty hunters, needs to act fast.

Young Wash and Titch flee a plantation in the Cloud Cutter but crash onto a pirate ship; in Halifax, Wash battles his past as his bond with Tanna deepens, a fight for survival and belonging amid growing tensions on land and sea.

In 1837 Halifax, inventor Washington Black chases flight while haunted by his past; he meets Tanna, a bold, independent woman; together, they face trials and learn that daring to dream can defy the limits of their world.