Plot Points On Top Of Another?

This may sound like a dumb question, but hang with me. I have two series in an xy plot. One is a line (withOUT markers) and one series is just markers (no line).

The line without markers is created in a way such that it forms a box and whiskers plot. The other series, are trial values that go into the box and whiskers.

I have desperately tried to get the second series (just points) to plot BEHIND the first series (line, no markers). Changing the series order does not work unless both series have lines. I have tried this in a variety of ways (including writing a macro which draws the markers first, and then the lines), but that doesn't work either!