Shawn es un joven muy distinto a los demás. Desde pequeño, su padre, detective de profesión, le enseñaba a fijarse en todos los detalles de su alrededor, incluso hasta en los más nimios. Tanto que sus extraordinarios poderes de observación le hacen ser sospechoso de un crimen que no ha cometido. Sin embargo, gracias a su talento, termina convenciendo a la policía de que se trata de poderes psíquicos. De este modo, el joven se hace pasar desde entonces por un falso médium. El joven Shawn sabe aprovechar su inusual habilidad de observar. Y es que, además de trabajar como asesor de la policía, monta un negocio para enriquecerse a partir de su propia farsa. Con la ayuda de su mejor amigo, Gus, el joven protagonista pone en marcha una agencia de investigación llamada Psych donde, de manera picaresca, intentan solucionar los casos más insospechados, dejando a las fuerzas del orden totalmente impresionadas, aunque siempre quedan los escépticos.
Ghosts (Episodio 1) 7.2
Guionista: Steve Franks
Fecha de emisión: 2008-07-18
Duración: 43 min
Sinopsis: Gus' supervisor, Frankjim Ogletree, demands that he quit moonlighting at Psych, lest he face termination. The vice-president of Gus' pharmaceutical company, however, decides to hire the duo as his wife believes that their home is haunted.
Sinopsis: Shawn and Gus attend their high school reunion. Shawn sees a body fly past a window, but on further inspection the body has vanished. When Gus assumes the worst, and Lassiter refuses to help, Shawn seeks assistance from Juliet.
Daredevils! (Episodio 3) 7.0
Guionista: Anupam Nigam
Fecha de emisión: 2008-08-01
Duración: 43 min
Sinopsis: Shawn and Gus get hired by the son of daredevil Dutch "The Clutch" Jenkins. They have to figure out what's going on, after "accidents" keep happening to The Clutch.
The Greatest Adventure in the History of Basic Cable (Episodio 4) 8.4
Guionista: Josh Bycel
Fecha de emisión: 2008-08-08
Duración: 43 min
Sinopsis: Henry's brother, Jack, claims that he has a map that leads to buried treasure. Shawn and Gus assist Jack in his search for the treasure, but it turns out that Jack has got more going on than meets the eye.
Disco Didn't Die. It Was Murdered! (Episodio 5) 7.9
Guionista: Saladin K. Patterson
Fecha de emisión: 2008-08-15
Duración: 43 min
Sinopsis: Eugene Franks, arrested by Henry in 1978 for plotting to bomb the SBPD, is released after his conviction is quashed by the D.A. When Shawn is instructed to solve the case, his father insists on helping him; however, the case is not as clear cut as he once thought.
There Might Be Blood (Episodio 6) 8.5
Guionista: Kell Cahoon
Fecha de emisión: 2008-08-22
Duración: 43 min
Sinopsis: Shawn and Gus investigate the death of a safety inspector aboard an offshore oil rig. The investigation is complicated by the commander of the coast guard, Barbara Dunlap, Chief Vick's sister.
Talk Derby to Me (Episodio 7) 7.8
Guionista: Tim Meltreger
Fecha de emisión: 2008-09-05
Duración: 43 min
Sinopsis: A surveillance tape from the latest robbery in a string of break-ins leads Shawn to believe that women are the culprits. He futher narrows the suspects down to a local roller derby team and suggests that in order to pinpoint the people responsible, Juliet needs to go undercover as a member of their team. Though it's technically her investigation, Shawn can't help getting involved in the case.
Gus Walks into a Bank (Episodio 8) 8.4
Guionista: Andy Berman
Fecha de emisión: 2008-09-12
Duración: 43 min
Sinopsis: Gus is taken hostage at the Santa Barbara Savings and Loan Bank while making a deposit for Shawn.
Shawn, still in the car and oblivious to the hostage situation, questions Lassiter and Juliet about the cops' sudden arrival. Learning that his best friend is in trouble, Shawn is desperate to help and realizes he needs to get inside the bank to question the gunman. However, the SWAT team soon shows up, and its negotiator will not easily satisfy Shawn's request.
Christmas Joy (Episodio 9) 8.1
Guionista: Saladin K. Patterson
Fecha de emisión: 2008-11-28
Duración: 43 min
Sinopsis: Shawn and Gus investigate a department store Santa who they suspect is up to no good. Meanwhile, Gus' sister flies in for Christmas.
Six Feet Under the Sea (Episodio 10) 7.8
Guionista: Steve Franks
Fecha de emisión: 2009-01-09
Duración: 43 min
Sinopsis: When Shabby the sea lion is found dead after being released into the wild, Shawn sets out to prove it was murder and stumbles onto a bigger mystery.
Lassie Did a Bad, Bad Thing (Episodio 11) 8.4
Guionista: Tim Meltreger
Fecha de emisión: 2009-01-16
Duración: 43 min
Sinopsis: Shawn and Gus must prove Lassiter's innocence when he's on the hook for a murder inside of the Santa Barbara Police Department.
Earth, Wind and... Wait for It (Episodio 12) 8.1
Guionista: Anupam Nigam
Fecha de emisión: 2009-01-23
Duración: 43 min
Sinopsis: Shawn and Gus join up with a local firehouse to prove a series of arsons are more than they seem.
Any Given Friday Night at 10PM, 9PM Central (Episodio 13) 8.2
Guionista: Josh Bycel
Fecha de emisión: 2009-01-30
Duración: 43 min
Sinopsis: Shawn and Gus go undercover at a professional football training camp when the foot of the team's missing kicker is discovered.
Truer Lies (Episodio 14) 7.8
Guionista: Tory Walker
Fecha de emisión: 2009-02-06
Duración: 43 min
Sinopsis: Shawn and Gus must prove a pathological liar is telling the truth in order to stop an assassination plot.
Tuesday the 17th (Episodio 15) 8.9
Guionista: James Roday Rodriguez
Fecha de emisión: 2009-02-13
Duración: 43 min
Sinopsis: Shawn and Gus are hired by a childhood friend to find a missing camp counselor who disappeared near their old sleep-away campgrounds. Upon their arrival, spooky activity abounds and they must uncover if the dark past of the abandoned camp has come back to life.
An Evening With Mr. Yang (Episodio 16) 8.8
Guionista: James Roday Rodriguez
Fecha de emisión: 2009-02-20
Duración: 43 min
Sinopsis: After eluding capture and disappearing eight years ago, the famed Yin Yang serial killer is back, and he's set his sights on Shawn.