LIVE TWITTER CHAT WITH "ROOKIE BLUE" STAR GREG SMITH, THURSDAY, JULY 21

Fans of ABC's popular summer drama series, "Rookie Blue," will be able to submit questions and receive real-time responses from Greg Smith, who plays Dov Epstein. He will be up on Twitter at @gregorythesmith, during the East Coast broadcast of the show on THURSDAY, JULY 21 from 10:00-11:00 p.m., ET. Smith will also offer commentary on the exciting action taking place, as well as behind-the-scenes anecdotes.

On Thursday's episode, "Stung," a local car dealership is the backdrop for a Division 15 sting operation to crack down on suspects with outstanding warrants. However, when one of the captured criminals tries to bargain for a lighter sentence by offering insider information to Dov and Chris, it puts them in peril in a booby-trapped meth house. Meanwhile, Jo convinces Luke to help her on a high-stakes surveillance job. Trapped together in a hotel room, the two detectives finally have it out over their past, raising the question of whether they are really finished.

For more information on "Rookie Blue," please visit ABC.com.

"Rookie Blue," now in its second season, follows five young and ambitious rookie cops as they continue to navigate the emotional trials and tribulations of their professional and personal lives. Last summer these rookies hit the streets for the first time with their training officers and learned how to walk the thin blue line. Now the training wheels are off - more experienced, they're ready to kick some serious butt. But these rookies are just beginning to realize there are no shortcuts to becoming good at this job. And when you're a rookie officer, a little knowledge is a dangerous thing.

"Rookie Blue" stars Missy Peregrym as Andy McNally, Gregory Smith as Dov Epstein, Charlotte Sullivan as Gail Peck, Enuka Okuma as Traci Nash, Travis Milne as Chris Diaz, Ben Bass as Sam Swarek and Eric Johnson as Detective Luke Callaghan. Also starring in the series is Melanie Nicholls-King as Noelle Williams, Matt Gordon as Oliver Shaw, Noam Jenkins as Detective Jerry Barber and Lyric Bent as Frank Best.

The series is executive-produced by Tassie Cameron, Ilana Frank, Noreen Halpern, John Morayniss and David Wellington. "Rookie Blue" is produced by Thump Inc. and Entertainment One.