Obi-Wan Kenobi: Master Yoda?

Master Yoda: Feel the disturbance in the Force, do you?

Obi-Wan Kenobi: Yes, Master.

Master Yoda: Fear you are in danger, I do. From the dead, an old enemy has awakened seeking vengeance.

Obi-Wan Kenobi: An old enemy?

Master Yoda: Killed your master many moons ago, he did.

Obi-Wan Kenobi: How can this be? I killed him myself!

Master Yoda: It is so, I fear.

Obi-Wan Kenobi: Darth Maul… alive?

From Star Wars: The Clone Wars – Season 4 Episode 21: ‘Brothers’ (4×21) | Produced by Cartoon Network