Yeah, it's all on one ticket, but I only have 50 minutes to make it from T4S to T4 at MAD (arrival time to departure time).
That includes a short train ride as well as clearing immigration and security... I did that two weeks ago, but that was early in the morning when there were basically no other passengers. And I only barely made my connection.

The question is what will happen if I miss my connection.
Because it's a rather complex itinerary and I don't know how they would reroute me.
They would probably want to be "nice" to me and rebook me on a more "direct" routing, which I definitely don't want.
Guess I'll just have to catch that flight.