WARNING: If you don't want to know what happened in this episode, don't read this photo recap! 

In 2001, the Hastings family-owned funeral home was under attack by supernatural forces. Calvin and his family prepare for what looks to be a nasty fight, arming themselves with weapons both traditional and mystical.

In present day, Calvin has returned to his family’s funeral home after a tour with the Marines. It brings back a flood of memories, both joyful and haunting.

Calvin has returned home to help his parents, bereaved of their other son Arlo, in the fight against the supernatural. Calvin’s mom Bea is overjoyed to have her son back; Isaac, his father, not so much.

At a Pentecostal revival church meeting, some snakes are brought in to demonstrate the power of the Lord. But the whole thing backfires when the snakes get out of control (big surprise) and end up biting their handlers.

Could it have something to do with a mysterious white man named The Dredge, and a deal he made with Jessica? Gold for her loyalty? You betcha.

Because Jessica has gone full-on reptile, letting fall from her bathrobe snakes that turn her roommate Nadine into Swiss cheese.

The LaRochelle police department, headed up by May, take Jessica in and throw in her a holding cell. She’s their top suspect. She’s also molting — or whatever it is snakes do with their excess skin. Isaac, who’s like the p.d.’s supernatural expert, is brought in to take a look.

It’s then that Isaac catches sight of the gold coin that The Dredge palmed off to Jessica. It’s got snakes embossed on it, and Isaac happens to know the special meaning it contains. Because he was there when it was first minted. Or something.

Tilly, the medical examiner at the funeral home, also knows a thing or two about world mythologies. The snake is the symbol for an ancient snake cult, that also dabbles in cannibalism. Whoever touches the coin takes on the appetite of a snake…and feasts.

Unfortunately, Officer Byron Wright also touched the coin while he was surveying evidence, and later turned into a hungry reptile creature looking to feast upon his newborn baby. Calvin and Isaac show up, and the father-son duo prevent him from taking the life of his child.

Isaac takes Calvin deep underground into the alchemy room that sits below the funeral home. In it are all the tools necessary to perform exorcisms and other mystical rituals to countervail the force of evil. Isaac tells Calvin that because humans have so wrecked the planet, bad stuff is able to flourish. That means more work for their mom-and-pop shop.

After Isaac finishes engraving bullets to make them infernal killing machines, he finally gets a chance to introduce himself to Garvey. She’s Isaac and Bae’s helper around the funeral home. She’s also his daughter. His and May’s daughter (which is a SURPRISE to Calvin). Hey now.

Bea and Tilly did some digging, and there are 12 other of those snake coins out and about, and they need to find all of them to end whatever killing spree they’re causing. To do that, Bea has to participate in a ceremony that will let her divine their locations — but she has to touch the coin. But the ceremony makes her sick, and she passes out.

More townspeople are touching the coins, going nuts, and killing. There’s some activity going down at the Garden of Eden Church — an apt location for some infernal festivities. Isaac and Calvin are geared up as they infiltrate the Garden of Eden Church. The infernal is somewhere in the church, as the readings on their electromagnetic devices indicate.

The infernal’s first tactic is to impersonate Arlo, Calvin’s dead brother. Arlo begs Calvin to put a bullet in his head and free him from limbo. But what Calvin doesn’t know is that the bullet would pass through Arlo and go straight into Isaac. Luckily neither father nor son shoot at the other.

The Dredge staged that whole scenario to see how Calvin and Isaac would respond. They surprised him. Then he surprises them: by knocking Calvin out and giving Isaac a physical run for his money.

Then Calvin wakes up and decapitates the Dredge! Hooray!

Wait. No hooray. The Dredge tricked Calvin into decapitating his father instead. This is going to be hard to explain to mom.