The high-concept, high-energy, and brain-scrambling comedy duo Cody Rivers Show returns to the stage with their new show, Once and for All for One, which promises “chainsaw bluegrass, facial mime, mixtapes, marauding trees, Gomez,” and more. I presume they mean the band Gomez, but the subject matter of any given Cody Rivers sketch hardly matters—audiences flock to them for their loopy wordplay, bizarre imaginations, and athletic dance numbers. Fill the Cody Rivers–shaped hole in your heart tonight! (Annex Theater, 1100 E Pike St, www.annextheatre.org, 8 pm, $15)