4. Dimensions In Time (1993)
This ones just... weird. And not Doctor Who weird, more What were they thinking weird. A short Children In Need special produced in 3D, Dimensions In Time reunited all of the surviving Doctors along with a huge number of companions and monsters. In an Eastenders crossover. No, stop giggling. Its real. The story saw the Third, Fifth, Sixth, and Seventh Doctors (with the Fourth Doctor having a more minor role similar to the First Doctor's in The Three Doctors) being trapped in Walford (the setting of Eastenders) in a twenty year time loop by renegade Time Lady the Rani. The Doctors meet up with various companions and Eastenders characters, and work together to break the Ranis time loop and escape Walford. Something I'm surprised the Eastenders characters weren't attempting as well Its a bizarre and frenetic mess of a story but its campy fun in a So bad its good" sort of way and managed to be biggest ever gathering of Doctors so at least thats something. Its just a shame that it crossed over with Eastenders (which is pretty much Doctor Who's antithesis) and that the Doctors are never seen properly working together like in the other Multi-Doctor stories.