Credit: Video Still

On Pretty Little Liars Season 4, Episode 7: "Crash and Burn, Girl!" (July 23), Caleb and Toby finally join forces to do some investigating of their own, and it looks like this new bromance is a force to be reckoned with.

Apparently they've figured out that someone named Nigel Wright might know something about what's going on. Who's Nigel Wright, you ask? Why, just Jenna's mystery man from Wilden's funeral. Interesting. Very interesting.

Even more interesting? Toby shows Caleb the lighter he found the night of the lodge fire, and the boys realize the big N and W on it could stand for Nigel Wright. Was this Nigel part of starting the fire? Is "A" or someone else trying to frame him? We can't wait to find out more.

Here's the official synopsis of the episode:

Caleb and Toby team up to investigate "A" and what really happened the night of the lodge fire and encounter a source that points to a new possible identity for "Red Coat." Hanna struggles to act like everything is normal and her friends are unsure about how to help her. Aria worries about Mike's behavior in light of an incident at school and Ezra struggles with how he now fits into her life.

Meanwhile, The Liars are determined to find a new suspect in Wilden's murder and their tactics have unintended consequences. And, "A's" new plan threatens to send everything crashing down around one of the Liars.    

Check it out below!

Credit: YouTube Photo: Pretty Little Liars Sneak Peek: Toby and Caleb on Season 4, Episode 7

Catch the episode on Tuesday, July 23, 2013 at 8 p.m. ET/PT on ABC Family.

Rebecca Martin is an editor at Wetpaint Entertainment. Follow her on Twitter @BeccaDMartin.