Episode 101:

Pilot Episode Los Angeles FBI agent Don Eppes recruits his mathematical genius brother Charlie to help him solve crimes. In the debut episode, a serial rapist begins killing his victims, terrorizing the area, so the brothers work to pinpoint the suspect's point of origin by using a math equation based on the various crime-scene locations. Math used:

geographic profiling, geographic profiling, probability theory , eleven-dimensional supergravity theory, projectile motion

Episode 102:

Uncertainty Principle Charlie accurately predicts where a band of bank robbers will strike next, but when Don and his team confront them, a massive shoot-out occurs and four people, including an officer, are killed. The outcome disturbs Charlie and he retreats into the family garage to work on an unsolvable math problem, which he also plunged into after his mother become ill a year earlier. But Don needs his brother's help and tries to get Charlie to return to the case. Math used:

P versus NP problem , Heisenberg's uncertainty principle

Episode 103:

Vector When various L.A.-area residents seemingly having nothing in common become extremely sick and die on the same day, Don fears that bioterrorists may have released a deadly virus into the environment. While he tries to discover whether anyone is behind the outbreak, Charlie attempts to locate the point of origin. Math used:

patient zero, viral vector, SIR model patient zero, viral vector, vector

Episode 104:

Structural Corruption Charlie believes that a college student who committed suicide by jumping from a bridge was actually murdered, and that his death is related to an engineering thesis he was working on about one of L.A.'s newest and most important buildings, which may not be as structurally safe as its owner claims it is. Back at home, Alan prepares for his first date in 35 years. Math used:

pendulum, Foucault's pendulum, Occam's razor, fluid dynamics

Episode 105:

Prime Suspect A six-year-old girl is kidnapped by a pair of clowns hired to perform at her birthday party shortly after the celebration ends. The girl's dad is a brilliant mathematician who is working on a complex problem and refuses to cooperate with the police, saying that he can get his daughter back without their help. This leads Charlie to believe that the kidnappers are after something that the missing girl's father is working on. Back at home, Alan decides to sell his house. Math used:

cryptography, prime numbers, Riemann hypothesis, Riemann zeta function

Episode 106:

Sabotage A serial saboteur claims responsibility for a deadly accident in which a train crashes into an empty school bus that was abandoned on railroad tracks. The perpetrator left a note that appears to be a numeric code, which Charlie tries to crack. Soon it's learned that the accident is a re-creation of a previous wreck, and that the person behind it is responsible for six train mishaps over the past three years, all of which were copies of earlier rail disasters. Math used:

Kasiski examination, Fibonacci sequence, Kasiski examination, cryptography golden ratio , Beale ciphers