Complex sentence: As Ms. Grunion informs the police, Peabody, Sherman, and Penny flee to the WABAC, but are unable to travel back in time as several historic figures and monuments rain down into the present.
Split into simpler sentences: As Ms. Grunion informs the police, Peabody, Sherman, and Penny flee to the WABAC. They are unable to travel back in time as several historic figures and monuments rain down into the present.