'COLD JUSTICE': Yolanda McClary and Kelly Siegler in the Season 2 finale of the docu-series. (John Nowak/TNT)

A woman is attacked in her home with her children nearby, blindly fires a gun in a supposed act of self-defense, and once she learns that the man who attacked her was her best friend’s son, it only gets more twisted from there on “Dateline NBC” (NBC at 9 p.m.).

After a brief hiatus, “Four Weddings” (TLC at 9) returns with two back-to-back hour-long episodes. The first segment features a bride who wants to incorporate a trapeze act into her grand entrance, while the 10 o’clock episode has a bride desperate for a football stadium wedding and another who wants to draw inspiration from wood.

Don Wildman, the host of “Monumental Mysteries” (Travel at 9), explores the gravesite of a blind slave whose musical talents led to a bitter custody, investigates the birthplace of the tommy gun and studies the birthplace of the snowboard.

FINALE WATCH: “Cold Justice” (TNT at 9) closes Season 2 with an investigation into the death of a woman who was found dead in a bathtub full of water with a clock radio at her side.

After its bloody series premiere, “The Knick” (Cinemax at 10) is back in the operating room with Thackery demanding more cadavers so he can investigate new and hopefully more sophisticated surgical procedures. Also, to remind us of how lucky we are to be living in the 21st century, the typhoid fever epidemic is addressed at the hospital.

Designer Pete builds a secluded, three-story, speakeasy-themed treehouse for Brian Kelley of the country band Florida Georgia Line on “Treehouse Masters” (Animal Planet at 10). The house, which is built on Kelley’s property in Nashville, features a rooftop lounge, a writing and recording room and an area for his...wait for it....pet sugar gliders.

Jonah sneaks out of the house and Kool Kris helps the Fobba-licious crew work on an original song against bullying on the controversial “Jonah from Tonga” (HBO at 10).

Actor Jason Statham and pop star Demi Lovato stop by “The Tonight Show Starring Jimmy Fallon” (NBC at 11:35), with a cooking demonstration from Momofuku founder David Chang.

Crooner and “Idol” judge Harry Connick Jr. and actor Jesse Eisenberg are on the “Late Show With David Letterman” (CBS at 11:35), with music from the Black Keys.

Actors Mickey Rourke and Jordana Brewster come to “Jimmy Kimmel Live” (ABC at 11:35), with a musical performance from Banks.

Rachel Lubitz