Deftly weaving together intense physical movement, spoken word, vocal music, and the theater laboratory ensemble techniques originated by Jerzy Grotowski, Rosanna Gamson stages a profusely evocative dance drama around the story of the tarpan--an extinct species of Eurasian wild horse that was genetically reassembled in the 1930s through back-breeding of domestic horses. The Los Angeles choreographer braids this allegory of regeneration with reflections on the history of her own Polish-Jewish ancestors, horse traders from Szczecin, and the fate of Polish Jewry.