The Big Heartless, a new play by local play-wright Dale Dunn, takes a multigenerational look at themes of isolation, loss, and raw, unspeakable love. In it, a wildlife biologist retreats to the wilds of Montana, devoting his life there to working with a group that reintroduces wolves to the mountains. His solitary life is upended, though, when his nephew and an impulsive friend arrive, looking for refuge from reform school. This semi-finalist in the Eugene O’Neill National Playwrights Conference opens Thursday, Feb. 14, at 7:30 p.m. at Warehouse 21, and runs through March 3, with performances every Thursday through Saturday at 7:30 p.m. and Sundays at 2 p.m. Audience talkbacks feature wolf reintroduction specialists John Oakleaf, Dave Parsons, and Nick Smith on Feb. 24, and Ironweed and New Mexico School for the Arts student mentorship participants on March 3. Purchase tickets ($25, with discounts available) at brownpapertickets.com.