LightningCloud, a portmanteau of the wife-and-husband writing team Crystle Lightning and Henry Cloud Andrade, have rumbled into town with their touring production of Bear Grease. Inspired by a certain 1972 stage hit, and even more so by the subsequent film version starring John Travolta and Olivia Newton-John, this Indigenous take on an old favorite asks the musical question: What if the hot boys and cool girls of high school also happen to be Enoch Cree and Huichol? However, as directed by Lightning, the more relevant query for this rambling vehicle is: What happens when a piece that began life as a one-hour parody is stretched into a two-hour variety show?