Rose and the Doctor find themselves in 1941 London when the TARDIS
receives an emergency signal from another time-traveling vehicle. While
the Doctor tries to determine where the object may have landed, Rose
goes off in search of a child she can hear calling for help. When she
gets herself into a precarious situation, she's rescued by the rather
handsome RAF Captain Jack Harkness, who owns a time machine of his own.
The Doctor meanwhile meets Nancy who has an interesting way of arranging
meals for homeless children. They are also being chased by the child
Rose heard ...