"The Legend of Marcos Ramos" -- When Brian helps Agents Harris and Boyle investigate the murder of a retired FBI agent, they\'re shocked to find a link to the elusive head of a notorious drug cartel. Also, Brian reconnects with an old flame, Shauna , but worries her renewed interest is really in the NZT version of him, on LIMITLESS, Tuesday, Oct. 6 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Pictured Mary Elizabeth Mastrantonio as SAC Nasreen "Naz" Pouran Photo: Michael Parmelee/CBS ÃÂ©2015 CBS Broadcasting, Inc. All Rights Reserved | Episode 1.03 - The Legend of Marcos Ramos | Promotional Episode Photos | Season 1 | Limitless | Gallery

SpoilerTV Image Archive | Gallery | Limitless | Season 1 | Promotional Episode Photos | Episode 1.03 - The Legend of Marcos Ramos | "The Legend of Marcos Ramos" -- When Brian helps Agents Harris and Boyle investigate the murder of a retired FBI agent, they\'re shocked to find a link to the elusive head of a notorious drug cartel. Also, Brian reconnects with an old flame, Shauna , but worries her renewed interest is really in the NZT version of him, on LIMITLESS, Tuesday, Oct. 6 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Pictured Mary Elizabeth Mastrantonio as SAC Nasreen "Naz" Pouran Photo: Michael Parmelee/CBS ÃÂ©2015 CBS Broadcasting, Inc. All Rights Reserved

$"The Legend of Marcos Ramos" -- When Brian helps Agents Harris and Boyle investigate the murder of a retired FBI agent, they\'re shocked to find a link to the elusive head of a notorious drug cartel. Also, Brian reconnects with an old flame, Shauna , but worries her renewed interest is really in the NZT version of him, on LIMITLESS, Tuesday, Oct. 6 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Pictured Mary Elizabeth Mastrantonio as SAC Nasreen "Naz" Pouran Photo: Michael Parmelee/CBS ÃÂ©2015 CBS Broadcasting, Inc. All Rights Reserved$