Complex sentence: Barbara wakes up inside the Batcave and is left with Robin, who gives her a tour of their operation and takes her to a soundstage where she successfully runs through an elaborate combat simulation, complete with live gunfire.
Split into simpler sentences: Barbara wakes up in the Batcave and is left with Robin, who gives her a tour of their operations. He takes her to a soundstage where she successfully runs through an elaborate combat simulation, complete with live gunfire.