Smartly directed, honestly acted and imaginatively written, HorseChart's production of O.T. took on prickly issues with the kind of spunky tenacity that one expects from a group of theatrical renegades. Clay Nichols's drama, which was mounted as part of the National New Play Network, mixed flashback-style scenes with current happenings to raise questions about the embedded attitudes that give rise to prejudice and racism. The play worked because Nichols took pains to reveal each issue's complexities and ambiguities; combined with director Brett Aune's straightforward approach, O.T. proved that it deserved to be further developed and mounted again.