VIDEO: Sneak Peek - Tonight's Episode of CBS's GOLDEN BOY

Related: GOLDEN BOY, CBS, previews & teasers

On tonight's episode of the new CBS drama series GOLDEN BOY titled 'Vicious Cycle,' Owen takes the lead on a murder investigation involving the brother of his former criminal informant who was killed a few years before.

Meanwhile, Clark struggles with whether or not to let his recently sober mother back into his and Agnes' life. The episode airs tonight, Tuesday, March 19 (10:01-11:00 PM, ET/PT) on the CBS Television Network. Polly Draper ("Thirtysomething") guest stars as Nora, Clark and Agnes' estranged mother. Get a sneak peek below!

GOLDEN BOY is a drama about the meteoric rise of an ambitious cop who one day will become the youngest police commissioner in the history of New York City, and the high personal and professional cost he pays to achieve it. After only three years as a beat cop, Clark's heroics on the job make him bold enough to ask for and receive the unheard-of promotion to homicide detective, angering some members of his new department who are eager to see him fail. Clark is partnered with and mentored by experienced veteran Detective Don Owen, just two years shy of retirement. Immediately, Clark comes into conflict with First Grade Detective Christian Arroyo, the alpha dog in the squad who's just as ambitious as Clark, but without a moral center. Arroyo's partner is Detective Deborah McKenzie, a tough third-generation cop and the only female detective in the unit. Also on the team is Detective Joe Diaco, well-connected with tremendous resources whicH Clark might find useful. Though laser-focused on moving up the ladder, Clark's soft spot is serving as the sole caregiver and supporter of his sister Agnes, a young adult demonstrating increasingly dangerous behavior, whom Clark must serve as much a parent as a brother. Keenly observant and politically savvy, the Golden Boy often bases his career decisions on his need to succeed as quickly as possible, and he'll find that his epic journey will be filled with unexpected consequences.