The Mentalist
Jane and Lisbon will hunt down a serial killer in The Mentalist season 7 TheMentalist/facebook

The Mentalist season 7 will return this Sunday with episode 3 titled Orange Blossom Ice Cream and promises to deliver enough drama for fans as Patrick Jane's nemesis Erica Flynn returns to the show to wreck havoc between the Jisbon romance.

The official synopsis of episode 3 reads:

Jane and Lisbon travel to Beirut where they must work with Jane's familiar adversary, Erica Flynn, who agrees to help the FBI apprehend her boyfriend, a courier for terrorist organizations, in exchange for amnesty for her past crimes."

Click here to watch episode 3 live stream online.

In the previous episode, Lisbon goes undercover as a prison inmate and tries to turn fellow jail inmate against her car theft leader boyfriend.

In the upcoming episode, the loving duo will travel Beirut where they will have no choice but to seek help from Jane's nemesis for her special skills in order to crack down a terror chain.

"I was really glad to come back one last time before the show went off the air," Monica Baccarin who plays the character of Erica told TV Line.

"Erica doesn't disappoint. She's of course getting into trouble and conning people all over again, which is nice. It'll be a fun one for fans to watch," she added.

The Mentalist season 7 episode 3 titled Orange Blossom Ice Cream airs on Sunday, 14 December on CBS.