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 âchainsaw bluegrass, facial mime, mixtapes, marauding trees, Gomez,â and more. I presume they mean the band Gomez, but the subject matter of any given Cody Rivers sketch hardly mattersâaudiences flock to them for their loopy wordplay, bizarre imaginations, and athletic dance numbers. Fill the Cody Riversâshaped hole in your heart tonight! (Annex Theater, 1100 E Pike St, www.annextheatre.org, 8 pm, $15)