urx unit loader 'Teen Wolf' Season 4, episode 2: Watch a sneak peek of '117'

Watch a “Teen Wolf” Season 4 sneak peek video to see what’s coming in episode 2, “117.” The episode looks ready to focus on Derek’s strange return and what Kate Argent might be up to.

This episode of “Teen Wolf” airs Monday, June 30 at 10 p.m. ET/PT on MTV.