How To Trace A Dead Circuit
With Daisy chained outlets not working it is usually the first non working outlet or the last working outlet on that circuit that has the bad connection. This problem is usually caused by the back stab terminals failing or a broken wire. The circuit needs to be identified and turned off for safety. Remove the working outlet from the box on this one you are looking for a loose, broken wire that feeds the other outlets. With back stabs sometimes pulling the outlet will temporally re connect the bad connection if this happens the outlet needs to be replaced. If the last working outlet is not the problem go to the first non working outlet looking for the same issue but on the feed to the outlet. if a wire pulls out of the stab that outlet really needs to be replaced, If the wire is broken strip the wire and repair the connection. This method has solved almost all the failed outlets similar to yours I have been called for.