What to Watch on Friday: New season of ‘Z Nation’ starts on Syfy

Z Nation (8 p.m., Syfy) - In the Season 3 premiere of this zombie drama, the gang protects the town against a new enemy.

Art in the Twenty-First Century (9 p.m., UNC-TV) - In Chicago, Nick Cave creates wearable objects that blend fashion and movement. At 10, from Mexico City, Damian Ortega makes sculptures from ordinary objects.

Treehouse Masters (10 p.m., Animal Planet) - At the request of country music star Zac Brown, Pete builds a half spaceship, half horseshoe crab, zinc-wrapped treehouse at the state-of-the-art kids camp, Camp Southern Ground.

Dark Matter (10 p.m., Syfy) - The second season ends with the crew of the Raza working to prevent the destruction of a space station.