Perhaps envisioned as a companion piece to Tomb of the Cybermen, but could also be seen as a remake. It seems to hit a lot of similar story beats anyway. Meanders a bit at the start but does eventually pick up momentum. Most of the twists aren't particularly surprising , but this doesn't detract form the drama too much, especially since we seem to be heavily in homage territory. Ends abruptly, and seemed to me that the fate of some of the admittedly thinly written characters were unresolved, unless I just missed something. There's fun to be had but not wholly engaging.