It's almost time for the 4th season of Numb3rs! If you're not familiar with the show already, check out my original Numb3rs post, as well as the whole Numb3rs category to get a better idea of the show.

The best way to get an idea of the show, of course, is to watch it. Season 1 (13 episodes) and Season 2 (24 episodes) are already on DVD. Season 3 (24 episodes) will be released this Tuesday, along with a Three Season DVD boxed set!

If you have an iPod, you can already purchase Season 1 (by episode only), Season 2 and Season 3 from the iTunes store. Update (Oct 1): The subscription to season 4 is now available, as well. Even if you're not sure about purchasing whole seasons yet, buying just the season 3 episodes The Mole and The Janus List, a total of only $3.98, is a great way to get ready for the season premiere.

Since it's been almost 4 full months since the season-ending cliffhanger aired, and was just re-aired last Friday, I have no qualms about discussing it. In the 4th episode of season 3, The Mole, Don's (Rob Morrow) FBI team is investigating the death of a Chinese interpreter. The murderer turns out to be Dwayne Carter, who saved agent Colby Granger's (Dylan Bruno) life in Afghanistan, when they both served in the Army's Special Forces.

This doesn't seem important until the season-ending cliffhanger. In The Janus List, a list revealed by a poisoned British secret agent reveals that Colby Granger is a double agent for the Chinese government. The last thing you see in that episode is both Carter and Granger being taken away to be tried for treason.

There are other questions that will hopefully be answered this season. Will Megan (Diane Farr) decide to stay on with the FBI after her DOJ assignment? Since Larry (Peter MacNicol) has a new outlook on life after being on the space shuttle, what will happen when he sees Megan for the first time? While we've seen "Charlievision", like in this scene, the The Janus List showed us the first instance of "Donvision", when he realizes that the bombs on the bridge look like a G major scale. Will Don start understanding Charlie (David Krumholtz) better in the new season?

The new episode will air on Friday, September 28th. In this clip, director Tony Scott talks about the making of the season premiere: