"Us" is the fifteenth and penultimate episode of the fourth season, and 50th episode overall of the post-apocalyptic horror television series The Walking Dead, which aired on AMC on March 23, 2014. The episode was written by Nichole Beattie and Seth Hoffman, and directed by Greg Nicotero. Glenn Rhee and Tara Chambler part ways from Abraham, Rosita and Eugene to go to Terminus, instead of going to Washington, D.C., in hopes of a cure. Glenn and Tara struggle on the way to Terminus, with their main objective to find Glenn's wife, Maggie Greene. Meanwhile, after Beth's mysterious disappearance, Daryl Dixon now has joined the group of Claimers led by Joe (Jeff Kober) but is at odds with some of its members. The episode received very positive reviews, with many praising its simplicity and lighter tone, compared to the previous episode. It was also praised for its ending, which features the first appearance of Terminus, as well as the reunion between Glenn and Maggie. Plot Glenn, Tara, Abraham, Rosita, and Eugene follow railroad tracks, while elsewhere Rick, Carl, and Michonne are also following the tracks toward Terminus, sharing a candy bar between them. Glenn's group comes across another sign pointing the way to Terminus, and Glenn discovers a note left by Maggie to him, telling him to travel to Terminus. They continue on, passing a small town, where Eugene is almost hit by a falling walker corpse falling from a roof before Abraham pushes him out of the way; the incident causes Tara to injure her foot. Abraham argues it is too dangerous to cover for Eugene, but Glenn allows them to use his riot suit to help protect Eugene if Abraham will continue on with them. Abraham agrees, and they find a usable vehicle and some supplies to continue. They come to a train tunnel, and Glenn sees another note from Maggie. He insists they need to go through the tunnel, but Abraham will not risk Eugene's life as there are sounds of walkers from within it, and decides it is time to part ways. He provides Glenn and Tara some supplies and flashlights, and tells them to retreat to the road if they get stuck, before they drive off. In the tunnel, Tara apologizes to Glenn, believing her actions in trusting The Governor led to the death of many of Glenn's friends, including Hershel, Maggie's father. Glenn accepts her