 Episode One: The Green Spot Murder  Episode Two: The Panther Strikes  Episode Three: The Trap Springs  Episode Four: Tracked by Wireless  Episode Five: The Death Ray  Episode Six: The Poison Dart  Episode Seven: The Race With Death Episode Eight: The Panthers Lair  Episode Nine: Imprisoned in the North Tower Episode Ten: The  Panthers Cunning  Episode Eleven: The Panthers at Bay Episode Ten: Heroes of the Law