Complex sentence: Harley's lover, the Joker, finds out about her predicament and tortures one of Waller's men into leading him to the facility where the nano bombs are made, where he blackmails one of the scientists involved in the program into disabling Harley's bomb.
Split into simpler sentences: Harley's lover, the Joker, finds out about her predicament and tortures one of Waller's men into leading him to the facility where the nano bombs are made. He blackmails one of the scientists involved in the program into disabling Harley's bomb.