Complex sentence: Thereafter, the Ghostbusters' office is visited by Walter Peck (William Atherton), a lawyer representing the EPA, who has the team arrested for operating an unlicensed nuclear device and orders their ghost containment grid deactivated, unleashing hundreds of captured ghosts onto the city.
Split into simpler sentences: Thereafter, the Ghostbusters' office is visited by Walter Peck (William Atherton), a lawyer representing the EPA. He has the team arrested for operating an unlicensed nuclear device and orders their ghost containment grid deactivated, unleashing hundreds of captured ghosts onto the city.