McCormick's final task is to find Helen in the present day. McCormick commandeers a B-25 bomber from an air show with Nat a stowaway on board. Claire notices Nat is gone and he was last in the plane with Daniel. The Government will wait for Nat and Daniel to get back and escort them home, so they can finish their research on Harry's machine and research from the hospital on Daniel's condition too. Nat helps McCormick land when another attack nearly kills him. His true age having finally caught up with him, the now-elderly McCormick reunites with the elderly Helen and asks her to marry him and she accepts.