What's On Tonight (Sunday): The secret world of Allison Mack

The Vow

Welcome to the end of week 50 of the television season! The Top Pick is HBO's latest docuseries, The Vow, about the cult NXIVM and its leader Keith Raniere. The story is told from a half dozen former members. Tonight's episode digs into DOS, an alleged recruiting platform for a secret society in which women were forced into sexual slavery. Allison Mack was Raniere's right hand in it, and she has been a brief subject in various segments so far. Last week, filmmaker Mark Vicente said he knew something was very wrong when he found out women were being branded. Actress Bonnie Piesse was worried about Mack's devotion and health.

Elsewhere, there are only four scripted shows on tonight, and they are all on premium networks. #FunFacts (Downvoted!) P-Valley comes to an end but Power-verse is up and rolling, CNN's show on the Windsors wraps, and after trips to Hawaii, Mexico, and the Caribbean, HGTV now takes us to the jungle.

Evacuate the city! Engage all defenses! And get this man a shield, here's what's on television for tonight, Sunday, September 5!

STREAMING & EARLY PRIMETIME

Doctor Who 📺 (Retro TV, 6 p.m.): On Delta Magna, a methane catalysing refinery's operations disturbs the giant squid Kroll, which grew in size after ingesting the fifth segment of the Key to Time.

QUICK HITS:

MLB ⚾ (ESPN, 7 p.m.): St. Louis at Chicago Cubs

FOR THE RECORD: Betty Broderick: Ex with a Vengeance (Oxygen, 7 p.m., special); Snapped (Oxygen, 6 p.m., season premiere); Stranger (Netflix, 3 a.m.)

🕗 EASTERN / 🕖 CENTRAL

P-Valley (Starz, 8 p.m.): SEASON FINALE. Folks from Biloxi to Atlanta pack out the Pynk to see two shining stars on an unforgettable night. Autumn's past finally catches up with her.✔️

Top Gear (BBA America, 8 p.m.): SEASON PREMIERE. Paddy, Freddie and Chris head on a British summer holiday in super-cheap, second-hand convertibles. Chris tests the new Ariel Atom; Freddie attempts to bungee-jump an old Rover off a dam.

QUICK HITS:

Boxing 🥊 (Fox): Yordenis Ugas vs. Abel Ramos

In Their Own Words (Reelz): Bernie Mac

NBA 🏀 (ABC, 8:30 p.m.): Houston at Los Angeles

NHL 🏒 (NBC): Dallas vs. Vegas

FOR THE RECORD: 90 Day Fiancé: Happily Ever After? (TLC); Air Disasters (Smithsonian Channel, season finale); Alaskan Bush People (Discovery Channel); Big Brother (CBS); The Circus (Showtime); Deadline to Disaster (Weather Channel); Fridge Wars (The CW); Renovation, Inc. (HGTV); Secrets of the Zoo: Tampa (Nat Geo Wild)

P-Valley (via Tumblr)

🕘 EASTERN / 🕗 CENTRAL

BET x ET Presents Chadwick Boseman's Life & Legacy (BET, 9 p.m.): SPECIAL. BET and Entertainment Tonight present a look back at the remarkable life and impactful career of actor Chadwick Boseman.

Jungle Life (HGTV, 9 p.m.): SERIES PREMIERE. Adventurous homebuyers leave the fast-paced city life behind and search for the bare necessities while singing Jungle Book songs.

Love Fraud (Showtime, 9 p.m.): A bounty hunter, a jilted ex and a local PI are all in search of a con man named Richard Scott Smith. They track him to the Krab Kingz in Wichita, where things really get weird.

Lovecraft Country (HBO, 9 p.m.): After Christina shows up at her doorstep, Leti confronts Atticus about his plan to surreptitiously return to Florida. In search of missing pages to a crucial text, Leti, Tic, and Montrose head to Boston with Hippolyta and Diana along for the ride.

Power Book II: Ghost (Starz, 9 p.m.): SERIES PREMIERE. As Tariq St. Patrick begins his new life at Stansfield University, he's torn between two worlds.✔️

Zootopia 🎥 (Freeform, 9:25 p.m.): Teach your kids to not be racist while they are young. This movie is a great lesson on the subject.

QUICK HITS:

The Curious Life and Death of... (Reelz): Lizzie Borden

FOR THE RECORD: Apocalypse Earth (History); Barnyard Builders (DIY Network); Carnival Eats (Cooking Channel); Chopped (Food Network); Evil Lives Here (Investigation Discovery); Expedition to the Edge (Discovery Channel); How It Really Happened with Harper Hill (HLN); Lone Star Law (Animal Planet); Love Island (CBS); Mexico Life (HGTV, 9:30 p.m.); The Real Housewives of Potomac (Bravo); United Vets of America (Nat Geo Wild, special) Weather Gone Wild (The Weather Channel); Wicked Tuna: Outer Banks (National Geographic); The Windsors: Inside the Royal Dynasty (CNN, season finale)

🕙 EASTERN / 🕘 CENTRAL

⭐ The Vow (HBO, 10 p.m.): Sarah confides to Mark about DOS, a secret group involving "masters" and "slaves," and struggles in her relationships with NXIVM, her husband and her best friend. Sarah and Mark lament how many members they've recruited and question what to do next.

We Hunt Together (Showtime, 10 p.m.): As Freddy's dark history surfaces, Lola and Jackson race to connect the dots in time to save the next victim.

QUICK HITS:

Uncensored (TV One, season premiere): Larenz Tate

FOR THE RECORD: Bar Rescue (Paramount Network)✔️; Beat Bobby Flay (Food Network); Caribbean Life (HGTV); Darcey & Stacey (TLC); Naked & Afraid: Foreign Exchange (Science); The Osbournes Want to Believe (Travel Channel); Signs of a Psychopath (Investigation Discovery. 10:30 p.m.)

Bar Rescue (via Giphy)

🕚 EASTERN / 🕙 CENTRAL

FOR THE RECORD: 90 Day Pillow Talk: Happily Ever After? (TLC); Hawaii Life (HGTV)

💤💤😴💤💤

Mission: Impossible 📺 (MeTV, 3 a.m.): Walter DuBruis, a crooked African financier, plans to use counterfeit money to pay off his debts, but the team plans to one-up him with their own counterfeit machine.

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Note: All times are Eastern.
Key Sources: The Futon Critic; IMDb; TV Passport; Zap2it
⭐: Top Pick
💲: Game show
🎥: Movie
📺: Throwback
✔️: Video/gif/photo included

⚾🏀🏒🥊: Sportsballs

Happy watching, everyone!