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.
11/16/2007
6/8/1991
11/23/1963
8/8/2014
12/23/2021
1/1/1996
9/3/2021
12/9/2004
12/29/1995
7/3/1985
11/22/1989
11/26/1986
5/25/1990
11/22/1996
10/26/1984
7/15/2006
11/1/2007
9/6/2005
5/30/1986
3/26/2010
11/6/2020