The creators of Into the Dalek were always going to be facing an uphill battle when it came down to delivering a good episode. Directly post-regeneration stories since the series returned have hardly have a great track record, with The Beast Below and arguably New Earth being counted among them. What's more is it was throwing the daleks into the mix extremely early on into this new regeneration, allowing no time for the crew to really get to grips with Peter Capaldi's new incarnation before having him face off against a classic nemesis. To make matters worse, this was going hand in hand with a dynamically new direction and attempting to handle heavy subjects about the Doctor's new persona at the same time.
Things looked bad for this episode, but the end result? This is almost intentionally bad, so horribly put together, that you would be forgiven for thinking there was a Springtime for Hitler going on behind the scenes.
The story here starts with the TARDIS intervening to assist a Combined Galactic Resistance subfighter about to die fighting daleks. With her co-pilot dead and a massive saucer bearing down upon her, she is barely saved at the last second by the Doctor, coffee in hand. After arguing for a few minutes, he eventually returns her to the human held stronghold Aristotle, hiding within an asteroid belt and desperately attempting to survive.