Complex sentence: Jim attempts to use his newly discovered invulnerability and strength to stop crime, but ends up being shot and injured by high calibre bullets and eventually ends up revealing his newfound powers to his wife, who has discovered that she has superspeed.
Split into simpler sentences: Jim attempts to use his newly discovered invulnerability and strength to stop crime, but ends up being shot and injured by high calibre bullets. He eventually ends up revealing his newfound powers to his wife, who has discovered that she has superspeed.