In the first episode we meet Mary Shannon a US Marshall for the Witness Protection Program. In this...

Things get complicated when Mary takes on the case of Leo Billups. Leo saw his mother murdered and i...

Mary's assignment this week is Treena Morris a con-artist who is married to a diamond smuggler. Aft...

Mary and Marshall take on a case involving Horst Vanderhoff, an agent for Lola, who's an assassin fo...

Mary works to solve the mystery of who tried to kill her witness, an art dealer. To complicate matte...

Mary learns that her witness, a NCAA basketball star, has a gambling problem

The closeness of a family is tested when they enter the program after the daughter witnesses a shoot...

A member of the Program under Mary's watch is in a car accident and Mary has to find out if it was a...

Mary suffers the consequences when an attractive witness, who she slept with, is accused of murder.

Natasha, the mild mannered Ukrainian accountant, has gotten her new breasts, but her life becomes mo...

After watching her mother audition for "Sweet Charity" Mary is kidnapped; in New Jersey, Brandi's bo...

The family regroups after Mary's ordeal; Stan and Marshall search for a way to force Spanky to tell...

A dead witness causes Mary to take leave of her administrative duties to solve a "Ten Little Indians...

A northern California marijuana mastermind cannot testify without using the drug to neutralize his a...

A witness finds herself having difficulty in managing her own brood of children, so Mary offers to b...

A building collapses on one of Mary's witnesses, leaving him exposed to outside threats, so Mary has...

An Orthodox Jew enters Witness Protection, but his wife refuses to join him. The situation is made m...

Mary and Marshall find themselves in a difficult position when Stan's very first witness turns up de...

An engineer blamed for a bridge collapse enters the program after being targeted by angry family mem...

When a series of murders seem to follow a new ex-con witness, including stabbing Mary's friend, she...

FBI agent O'Connor arrests Brandi on charges of drug trafficking and murder. Insisting her sister is...

Mary briefs a new witness whose visitation rights with his son depend on the man's testimony. When M...

The barely legal daughter of Mary's witness – a Miami racketeer – finds herself in a dangerous roman...

Mary lends her expertise for the U.S. Marshalls by making a training video with a film crew. Elsewhe...

A world-class counterfeiter witness is suspected in a murder; Mary and Marshall realize they may be...

When a Wall Street blue blood rats on his boss' investment fraud and hides out in WITSEC, something...

The US government helps a Latina political activist hide in Witsec, but the arrangement sours after...

A former high line thief from Boston tries to give up crime for the sake of his teenage son, and Mar...

In 2003 Mary meets Marshall for the first time as they get lovers CLAUDIA TOBIN and HENRY DOER into...

ATF agent Wade Guthrie is shot and left for dead by gun trader Jasper Malone. After three years in a...

Mary and Marshall try to help FBI Agent Mike Faber convince his informant to enter WITSEC. Despite t...

Mary’s new witness falls in love for the first time; Mary must stop her witness from taking out his...

Mary tries to help a parolee acclimate to life outside of prison after having spent 38 years behind...

Mary's new witness is part of a mortgage fraud ring and is an important link in the case of FBI Agen...

Marshall is being evaluated in the field by his father (Geoff Pierson) during a joint fugitive opera...

A woman wants to escape from her family, who are heavily involved in organized crime, but a secret f...

A witness with Aspergers who has no social filter and can't lie stymies Mary, particularly when the...

Mary helps her latest witness, a homeless man who's struggling with the program, find his birth pare...

Mary keeps an eye on a teen witness whose separated parents are too distracted by their own issues t...

After a priest witnesses the murder of a parishioner, he will have to give up his special vocation i...

Mary uses a thief to catch a thief when she asks a witness to consult on a crime in order to exonera...

Mary's paranoid witness wants to reconnect with his son.

Mary is caught between a witness and a suspect.

A beauty pageant queen finds out that she's spent most of her life in witness protection

Mary works with an unapologetic con artist.

An Amish witness comes into the program and must learn to adapt.

A terminally ill father wants to reconcile with his children.

Mary plays marriage councilor in order to mediate a WITSEC divorce. Not only must she reconcile a st...

Mary gets a WITSEC two-fer, when a witness is forced to enter the program after being mistaken for h...

Marshall and Stan contend with a rock-star witness and her controlling mother while Mary is away on...

Mary helps protect a guilt-ridden Army veteran; Marshall & Abigail consider the next step.

Mary protects a courtesan from the gangster father of her baby.

Mary must protect her least favorite witnesses on the day of her sister's wedding.

Mary sees whether she can balance motherhood with a demanding profession and a dysfunctional home li...

With Jinx out of town and Mark busy with a last minute business trip, Mary has no choice but to head...

When Marshall's witness escapes from the WITSEC offices and disappears on an Indian Reservation, Mar...

Mary protects a bigamist not only from his former employer, but also his two wives. In WITSEC, cheat...

Even with Joanna babysitting Norah and Brandi addressing her alcohol problems in rehab, things are s...

Mary is still reeling from the flood of emotions stirred-up after having to arrest her father, James...

Having slipped through the fingers of the FBI, James Shannon is on the run again and heading for the...

Series Finale: Drastic changes take place at the Albuquerque WITSEC office. Mary finds herself caugh...