Jane (Angie Harmon) and Dr. Maura (Sasha Alexander) will dive head on into the world of heists and forgery in their newest case on TNT's crime procedural drama, "Rizzoli & Isles."

The show's fourth episode, entitled "The Imitation Game," will see the fantastic duo investigating the murder of a notorious thief. Jane will also be forced to "tango" with an F.B.I. agent who is showing a more than passing interest in her case. 

Meanwhile, Angela (Lorraine Bracco) has a new suitor. Cartermatt hinted that the introduction of this new character may start an avalanche of twists and turns for the show. 

Last episode, Jane and Maura solved the mystery crimes where the victims were being buried in a research facility that studies body decomposition. Evidence led them to the water deliveryman the facility had hired. The murderer was appparently recreating his childhood with his killings. His mother died after too many beatings from his father.

Meanwhile, the ladies could not help but notice Angela's absence of late. When they asked her why she was always gone, Jane's mother told them she was busy taking French cooking classes. Smelling a rat, they soon found out that Angela had been going ice-skating to impress a man she liked.

Showrunner John Rein previously told TV Guide that Season 6 would be a "reset" of the series with the new angles they plan to tackle.

"We wanted to start fresh in Season 6 and figure out the stories we could tell, and what we think could be fun and interesting for these characters. Last year there was a lot of heavy stuff going on. This year, there will definitely be some good emotional strings that we'll be pulling, but they won't have that emotional weight as last year's. You can't do that two years in a row without feeling heavy-handed and clichéd," he said.

Rein also mentioned that different relationships may emerge as the season progresses.

"We wanted to have an episode that tested the family and gave everybody a rooting interest, and everybody would be invested in the outcome."

"Rizzoli & Isles" Episode 4 airs at 9 p.m. Tuesday on TNT.