Summer of Rockets

During the tumultuous summer of 1958, Samuel prepares to launch his new invention, which is attracting some suspicious followers, before meeting the mysterious Kathleen.

Hannah arrives at Buckingham Palace but is too late to be presented; the Secret Service tasks Samuel with spying on the Shaws in exchange for an order of his invention; Hannah discovers that Kathleen has a tragic family secret.

Samuel spies on his new friends while his relationship with Kathleen intensifies; Samuel is tasked by Mr. Field to find out the names of those attending the Shaw's party.

Kathleen visits the boarding house in search of Anthony, but has no luck; Armstrong explains to Samuel that they have reason to believe that people connected with the Shaw family could be enemies of the state.

After the shooting, Field places the Petruhkin home and factory under protection.

Samuel learns the truth about the Shaws and the MI5 men.