You have 3 different timelines going on at the same time. Elliot’s version, Mr Robot’s version and what’s really happening. In the real timeline you also have the version Angela is in and the one E Corp is trying to dictate.
In between Elliot and Mr Robot’s version you have Darlene trapped in there living both at the same time while trying to keep the FBI at arms length. The Dark Army are currently a bit of a subplot but they have come back to the fore in the last episode.
Basically Elliot is a deranged hacker who is struggling with a severe bipolar problem, Darlene and Angela are dealing with a disrupted childhood (death of parents caused by E Corp) and the Dark Army are like the modern equivalent of the Mafia, trying to control everything. E Corp is just a giant company that symbolises all that is wrong with the consumerist economy model.
Add in the subplot of the issues inside the Dark Army and you have a complicated viewing experience! I’m loving it.
EDIT: just to add I have a way to relate to what’s going on as my mum is quite severely bipolar and I’ve fallen into the consumerist debt cycle in my past so I have the experience to relate to some of what’s going on.