"Vatos" is the fourth episode of the first season of the post-apocalyptic horror television series The Walking Dead. It originally aired on AMC in the United States on November 21, 2010. The episode was written by Robert Kirkman and directed by Johan Renck. In the episode, Rick Grimes (Andrew Lincoln), Daryl Dixon (Norman Reedus), Theodore "T-Dog" Douglas (IronE Singleton), and Glenn Rhee (Steven Yeun) return to downtown Atlanta in search of Daryl's brother, Merle. The group are later targeted by a Latino gang, whose leader threatens to kill them if they do not relinquish their weapons. Meanwhile, Lori Grimes (Sarah Wayne Callies) and Shane Walsh (Jon Bernthal)'s relationship begins to crumble.