Episode 1 (parts 1-2)
Gil Maier drives into the north central Iowa town of Monrovia. He’s been hired by Ole Torvaldsson, general manager of the local farmer-owned cooperative Northern Star Farmers Cooperative, to the newly-created position of assistant manager. Gil had been a superintendent at a cooperative out in western Nebraska and jumped at the chance to return to the part of the country where he grew up. He arrives at the office on Railroad Street and notices Ole carefully storing a laptop in an office wall safe.
Episode 2 (parts 3-5)
Gil meets key members of the staff at Northern Star’s home elevator including General Manager Ole Torvaldsson; Weighmaster Kay Nichols; Office Manager Dottie Wilson; Superintendent Sollie Finkel; Merchandiser Howie Carr; Johnny Littlefeather, outside laborer; and Calvin Fogerson, an electronics jack of all trades if a little excentric. He also hears the story of Marcus Grover, a local high school football legend from Monrovia’s only black family, who allegedly committed suicide by jumping off the elevator roof five years earlier after Board Member Eddie Lofgren, an unpleasant and bigoted area farmer, forbade his daughter Michelle from seeing Marcus.
Episode 3 (parts 6-8)
Ole and Gil go to Loretta’s Café downtown for lunch with Board Chairman Bob Alsup and Board Member Eddie Lofgren. Eddie is a rough-spoken man who hints to Gil that maybe they could make some money speculating with coop funds, which would violate coop rules. Later, Gil helps his uncle Arthur with some planting on Arthur’s farm; the uncle explains he was suspicious of business dealings at Northern Star so stuck with his own coop instead of joining a new one. Another day, Gil visits Tom Hasselmeier, editor of the local weekly newspaper, and looks up old clips on the death of Marcus Grover.
Episode 4 (parts 9-11)
Episode 5 (parts 12-14)
Episode 6 (parts 15-17)
Gil and his companions see evidence that Eddie Lofgren physically abuses his wife, Helen. Later they visit Carl Kershaw, former Monrovia High School principal at the time of Marcus Grover’s death and heard the tale of how Marcus and Eddie Lofgren’s daughter, Michelle, were growing sweet on each other at the high school prior to Marcus’ alleged suicide. Michelle disappeared afterwards apparently never to return to Monrovia. Gil and Sollie, in the meantime, hatched a plan to watch the Monrovia elevator for evidence someone was stealing grain. Watching from Sollie’s house while the superintendent was away, Gil spots a semi-truck pulling up out of the range of the elevator’s monitors and two men apparently stealing soybeans.
Episode 7 (parts 18-20)
Gil follows the apparent soybean thieves’ semi truck along back roads to a processing plant in Mankato, MN. While hiding among tall grasses near the plant to watch for the truck, he is knocked unconscious by a blow to the head. He wakes up laying on the road shoulder and his pickup in a ditch with the spark plugs and a cell phone inside missing. He cleans up at a nearby diner, and eventually reaches the coop to find Ole Torvaldsson and Eddie Lofgren are on the warpath looking for him. He calls the soy processor in Mankato and finds the truck came from Blue Sky Farms near Mason City. By the time he gets back to the elevator, Ole is away meeting with an end user, and Gil reports his findings to Sollie. The next morning, Northern Star employees discover a mysterious hot spot in some stored grain.
Episode 8 (parts 21-23)
General Manager Ole Torvaldsson fires Gil, accusing him of snooping around and scaring farmer-customers. At that point, it was discovered that Sollie Finkel had disappeared into one of the facility’s concrete storage tanks with the sweep auger running. Gil discovers that Sollie’s lockout/tagout device had been removed from the auger controls with a metal cutter and his lifeline atop the tank had been cut. Ambulance, fire department, and police first responders are called. Sollie’s lifeless body is recovered from the tank, and Gil suspects murder. Even though he officially is barred from the elevator’s premises, he finds some evidence the grain temperature monitoring system may have been tampered with and no evidence of out-of-condition corn.
Episode 9 (parts 24-26)
Gil is questioned by a Monrovia police detective. From the line of questioning, Gil discovers he is a suspect in Sollie Finkel’s murder, and Ole Torvaldsson has been encouraging that suspicion with the police. The detective advises Gil not to leave town. Meanwhile, Northern Star Chairman Bob Alsup hires Gil temporarily as an equipment mechanic on his farm and encourages the ex-assistant manager to continue pursuing his inquiries around town. Gil still has a key to Sollie Finkel’s house, and goes inside to search it for more clues. He finds a postcard from Michelle Lofgren who had disappeared after Marcus Grover’s death indicating she was in Grayton Beach, a small resort town in the Florida Panhandle. Gil seeks permission to go out of town for a “funeral.” Detective Kellerman gives him three days, and Gil flies to Florida.
Episode 10 (parts 27-29)
Episode 11 (parts 30-32)
Michelle Lofgren refuses to return with Gil to Monrovia, but she does give him a small piece of wood she calls High John Conqueror Root as a “protection from evil.” Gil returns alone to Monrovia and decides to visit Calvin Fogerson at the trailer park where he lives. Gil recruits Calvin to pick his way into the wall safe in Ole’s office to find out what’s on the laptop the general manager keeps there. That night, Calvin brags about how he controls all of the video cameras at the elevator, then gets to work on the safe. On the laptop inside, they find a big file named Blue Sky Farms, the outfit Gil caught stealing soybeans from the elevator. He has it downloaded onto a disk.
Episode 12 (parts 33-35)
At home, Gil examines the Blue Sky Farms files. It was a shell company involving Ole, Eddie Lofgren, and Eddie’s son, Bob, set up to speculate on the futures market in violation of cooperative rules. They had lost a huge sum of money that way, then began stealing grain from the elevator and selling it to cover those losses. Criminal fraud, no doubt, but no apparent connection to the murders at Northern Star. Gil takes the files to Bob Alsup. Bob is appropriately appalled but suggested hiring an outside accounting firm to conduct a third-party investigation, since the computer files Gil had obtained had been gotten illegally and would not hold up in court. That would take a vote of the board of directors, so Bob convenes a meeting at his farm with a bare quorum of members known to dislike Ole. The board goes along with doing an outside investigation and to suspend Ole with pay. Eddie Lofgren arrives with his son.
Episode 13 (parts 36-38)
Eddie and Bob exchange harsh words with members of the Northern Star board of directors, and after several county sheriff’s deputies show up to keep the peace, the two of them leave. Later Gil receives a call from Michelle Lofgren who has decided to come to Iowa after all to help the police with their investigation and exonerate her father. Gil arranges to put Michelle and her boyfriend Charlie Toussaint up at a motel outside of Monrovia. The next morning, Bob Alsup, Curly Petersen, and Gil go to the coop office and deliver the news to Ole Torvaldsson that an outside accounting firm was coming in to go through Northern Star’s finances, and Ole has been suspended as general manager. Bob names Gil acting general manager in Ole’s place. After Bob and Curly leave, Gil confronts the actual murderer of Marcus Grover and Sollie Finkel and explains how he solved the puzzle.
Episode 14 (parts 39-41)
The murderer makes an attempt to escape. The murderer is caught, ironically, with the help of Michelle’s High John Conqueror root. Gil accepts the position of general manager at Northern Star but only after extracting a promise from Bob Alsup that he would be able to run the day-to-day operations of the cooperative without undue interference.