Complex sentence: The girl repeatedly bumps into various people and eventually ends up near where the band is playing, she then retraces her steps and finds that most of the people she ran into before now have some sort of metal implant.
Split into simpler sentences: The girl repeatedly bumps into various people and eventually ends up near where the band is playing. She then retraces her steps and finds that most of the people she ran into before now have some sort of metal implant.