Sarah Stone is no longer the loose cannon she once was. As a senior member of the long-established MCU, she has finally found the the peace and stability she has always longed for.

But that peace is shattered when a plane falls out of the sky.

With almost eight-hundred dead, the MCU is called to investigate the cause of the plane crash, but the answers they find make little sense. Hacking a plane is supposed to be impossible; so how did somebody do it?

There’s a mass murderer on the loose, but it’s not who you might expect.

This completes Sarah Stone’s tragic story with the biggest terrorist attack yet, bringing a tale more sombre and emotional than any before.