Barney confronts the Watcher in the ruins of Phoenix Parks. Upon learning that the Watcher only exists to end the war—not prevent it—Barney decides to use a time travel spell to change history himself.
Barney’s attempt to fix the past causes the Watcher to glitch. Barney ultimately goes back to the day he first got Pugsley, scaring his younger self's puppy to ensure he never becomes the Watcher. Why It Matters
The episode centers on the shocking discovery that the Watcher is actually an alternate-future version of Pugsley . Coming from a timeline where a devastating war between demons and angels destroyed everything, this version of Pugsley was created to end the conflict by casting a "Spell of Division". Plot Highlights