GFCI Breaker in Main Panel
I would be looking at the switched outlet. 
If your 1,2,switch are from the closest to your panel I would go to the switched outlet first as it is quite common for a failed backstab to have this problem at the last working outlet or first non working. 
you know the switch is getting power and if backstabs are used switches are normally fed by a pigtail. 
When the switched outlets other side is fed by a back stab that would be the most likely place, if not there the switch box would be my next check.

If you pull the outlet out and everything starts working the wires need to be moved from the backstabs to the screws. If the outlet has been damaged (melted from arcing) replace it.