017: The Three Doctors
The Third Doctor probably thought things were bad enough - stuck on Earth as he was with a dud TARDIS, a scatty hippy and a bunch of squaddies. But now he has to contend with CSO in his sink, a bunch of Mr Blobbys on his lawn and a loud-mouthed mentalist with a grudge. Luckily his former selves turn up to make things even worse.