Four Doctors (comic story)

Four Doctors was a miniseries published by Titan Comics. It served as a three-way crossover between Titan's ongoing series Doctor Who: The Twelfth Doctor, Doctor Who: The Eleventh Doctor and Doctor Who: The Tenth Doctor, uniting the three Doctors and their companions, as well as marking the Titan Comics début of the War Doctor. It also featured a cameo by the Ninth Doctor and Rose Tyler.

Summary
What shocking past event brings three Doctors together — to combat an unknown foe with three incarnations in its sights?

Issues

 * FD 1
 * FD 2
 * FD 3
 * FD 4
 * FD 5