'Lethal Weapon' season 2 episode 12 spoilers: Riggs discovers a secret about his deceased wife

A promotional image for "Lethal Weapon." Facebook/LethalWeaponFOX

An old secret about the deceased wife of Riggs (Clayne Crawford) when he takes trip down memory lane when he visits his father-in-law in prison in the next episode of the buddy cop action comedy-drama television series based on the film series of the same name "Lethal Weapon."

In the upcoming installment titled "Diggin' Up Dirt," the synopsis from TVGuide also reveals that Murtaugh (Damon Wayans) will be trying to impress Captain Avery (Kevin Rahm), while Trisha (Keesha Sharp) and Leo (Thomas Lennon) try and solve a murder case when they are united by a mutual friend. 

The promo for the next episode centers on Murtaugh looking to prove to Avery that he deserves a promotion. He is seen taking on criminals, blowing up a car in the process. "You should be asking me to be the captain," he tells Avery who appears dumbfounded. It seems as though Murtaugh is aspiring to move up the ladder and take on more responsibilities. 

Murtaugh is also shown trying to assert his authority to his laid back partner, Riggs. Back at the office, he tries to push his weight on Riggs in saying, "That was not a request." However, his partner responds by laughing in his face and turning around to ignore his supposed order. Whether Murtaugh will actually be considered for a promotion remains to be seen. 

According to Cartermatt, "Diggin' Up Dirt" will provide another chance to see Leo Getz on the series. The episode marks the second time in which Thomas Lennon makes an appearance through the second season. 

In the previous episode, Murtaugh and Riggs were able to catch the criminals responsible for the murder of a professional counterfeiter. It was also discovered that Secret Service agent Peterson (Ernie Hudson) played a part in the conspiracy. The duo was able to bring all the perpetrators to justice.

"Lethal Weapon" season 2 episode 12 will air on Tuesday, Jan. 9, at 8 p.m. EST on FOX.

News
A brief history of Christmas bans
A brief history of Christmas bans

These days, Christmas is hard to miss and nearly impossible to avoid. But at various times it has been banned in different countries, including Britain. This is the story …

Organisers of Christmas evangelistic campaign thrilled with impact
Organisers of Christmas evangelistic campaign thrilled with impact

Organisers of this year's Shine Your Light Christmas evangelistic outreach have been "overwhelmed" by the response from local churches.

Reach out to others, says Salvation Army, as 1.8 million Brits set to spend Christmas Day alone
Reach out to others, says Salvation Army, as 1.8 million Brits set to spend Christmas Day alone

People are being urged to reach out after polling suggested 1.8 million UK adults will spend Christmas Day alone, even though they do not want to.

Another Christmas in hardship for Gaza church
Another Christmas in hardship for Gaza church

For Christians sheltering in the Holy Family parish in Gaza, there will be few comforts this Christmas.