★ 5.3
★ 6.0
★ 7.0
★ 6.5
★ 5.7
★ 7.4
★ 6.9
★ 6.3
★ 6.1
★ 6.7
★ 7.6
★ 4.8
★ 7.3
★ 7.2
After Martha Jones parts company with the Doctor, his TARDIS collides with another, and he comes face to face with one of his previous incarnations.
