All-action, bigger-budget time-travel sequel. The Daleks are now - or will be - enslaving humans (well, men - where have all the women gone?) as Robo-men, whom they feed with Dolly Mixtures, for some reason.
Bernard Cribbins is far less of a tit than Roy Castle was in the previous film; Philip Madoc plays a psychotic Welshman in a trenchcoat (ah yes, the old staple sci-fi character); future Quatermass Andrew Keir is one of the freedom fighters.
The moment at the beginning where a Dalek rises from the Thames - causing Cushing to exclaim "Daleks!" (although it's no surprise to us because we've seen the title) - is very cool. Superior sequel.