FX's 'Justified:' Five things we learned from 'Hole in the Wall'

When FX's "Justified" returned for its fourth season premiere Tuesday night, we got some things we expected. Timothy Olyphant's Raylan Givens was smart, funny, and quicker on the draw than a bad guy expected, and we got two scenes of him outsmarting his target. We also got some curve balls though, starting the season out with a big question.

Related: "Justified" returns with laughs, murder, and a mystery in "Hole In The Wall"

Here's five things we learned from "Hole In The Wall."

1. This season is all about a mystery.
While the first three seasons of Justified dealt with a central bad guy, this year will be centered around a mystery, which is apparently so big that Arlo murdered a man just for seeing it. Who was the D.B. Cooper-style parachutist, and why is his empty bag worth so much? The answers will probably take twleve more episodes to be revealed.

2. Raylan's got a lot on his mind.
There wasn't a lick of official business done in this episode, with Raylan walking out on his job to pick up extra money tracking a bail jumper. That wound up almost being catastrophic, as he only had Constable Bob to rely on to help him. While he's making the extra money for his baby on the way, he's didn't even see Winona in this episode, although he did find time to make out with a waitress.

3. Constable Bob is a public servant in a Gremlin.
Patton Oswalt's Constable Bob is a hilarious counterpoint to Raylan, and gives the show some sorely-needed comic relief that doesn't have to come directly from one of Raylan's Southern sayings. Using him too much will spoil it though, so lets hope he makes sporadic appearances. Anything that gets Oswalt on television is good for all of us.

4. Arlo's still a bad man, even in prison.
When Arlo took the fall for Boyd last year and went to prison, it certainly didn't mean the end of the character. Somehow Arlo's still the center of attention, sending a pair of teenagers to rob his house and get the bag, and then murdering another prisoner in cold blood just because they recognized the bag. Now more than ever, Arlo's pulling the strings. And slicing the throats, for that matter.

5. Boyd's got a new enemy, and a new ally.
While Boyd and Raylan are being kept apart for the first month of this season, we can already see where Boyd's heading. The well-read criminal and former spiritual leader has a new adversary in Preacher Billy, a snake-handling tent revivalist who seems to be cleaning up the area, or at least keeping the people away from his Oxy business. Boyd's got a new right-hand man though, and Colt appears to be a man who doesn't shy away from violence. Since the rest of Boyd's gang is dead or in prison, Colt promises to be a big figure for him.

-- Reid Kerr cracks up at Constable Bob's homemade ride. Follow Reid on Twitter and yell at him there.