An eclectic group of people converge on Galway city for the start of the horseracing festival The Galway Races, all hoping this famous week will be the week that makes their hopes and dreams come true. But, the wages of sin are manifold… Politician Minister Keane and his driver Creed rush to get to Galway for the opening of the Races. Horse trainer Noel Lacey argues with his jockey Liam Reilly about how his prize horse will perform Sinead and Eamonn devise the quickest way to dig themselves out of crippling debt.
Minister Keane begs his loyal driver Creed to help him out of the bind he finds himself in…and they bury the body in a bog. Noel and his sister Denise anxiously wait for Liam to recover from his fall, so they can ensure he doesn't spill the beans on them. The De Barra's rob a Chinese Restaurant, for some ready cash ... and a hot meal, a plan almost foiled by the unsuspecting Aoife! All end the day arriving at a hotel in the city, to be met with a gruesome surprise from the sky!
Aoife instantly assumes control of the investigation into Liam Reilly's death, only to be cut out by her unappreciative boss. Noel insists on attending the Races, despite being in mourning, and unexpectedly wins the Plate with a nag. A young woman Ciara reports her boyfriend missing to Aoife. Donegal criminal Tarrant heads to Galway in pursuit of De Barra's who robbed him.
Women's Day at the races and everyone can come to enjoy the sight! Aoife offers all types of risk when looking for files of a case with Liam Reilly.
Keane and Creed try to narrow down the suspects who might know their secret, so Keane gets to know Ciara Power very well! Aoife finds out about Sinead and interviews her about the night Liam died. Eamonn tries to scare the wrong man away from Sinead... and digs her deeper into trouble. The De Barra brothers are enjoying another day at the Races, blissfully unaware that Tarrant is in town and on the warpath looking for them.
Aoife & Dave make a gruesome discovery when they arrive to interview Noel Lacey. Creed takes Keane to the races to take his mind off the blackmail threat. Mannix gives Sinead an ultimatum if she ever wants to see Eamonn again. The De Barras are on the pig's back, enjoying the comforts of the plush house they raided while the unsuspecting family are on holidays. Eoin decides to leave the racecourse early, promising Aine they'll do something nice. However, a suggestive invite from Imelda by text makes him decide differently. Aoife gets sent to a rural checkpoint to keep out of trouble, but she finds herself in the thick it... meeting the real Creed, the wayward De Barra's in s stolen car... and a body in a bog, not to mention being asked out on a date!
Aoife finds a piece of evidence near Rory Halpin's body. The De Barra's raid Eoin Boland's house to rob him, but are in for a disappointing surprise! Aoife sees Minister Keane at the hotel and puts it all together. Sinead decides to take control and springs Eamonn from Mannix', leavng a trail of destruction as they flee. At the Races, Keane & Creed, the De Barra's, Boland and Aoife all converge on the VIP tent at the same time, and mayem ensues as Aoife tries to achieve her ambition and solve all the crimes in one fell swoop but she hasn't reckoned on her crooked boss Paidi! As the De Barra's flee the racecourse, Tarrant hears of their antics on a police scanner and pursues them into Galway city.
Backbencher Keane attempts to revive his wrecked political career at the Races just as a new Superintendent Harte exerts her authority on the criminal underworld of Galway.
Creed foils Keane's one man coup in the nick of time however the tabloid journalist Hanly gets a whiff of the mounting conspiracy. The mysterious figure continues to haunt Harris as Siobhan's peaceful home life is disrupted by her deadbeat brother. The happily incarcerated De Barras siblings are spectacularly liberated by their resourceful brother Oisin but they're not happy about heading back to Galway.
A sudden shoot out engulfs Siobhan and the De Barras while Keane's returning libido leads to an unexpected death.
Keane lures Frank into an ambush while a vengeful Harris catches up with the De Barras.
Creed is seduced by the Taoiseach's fiancee, Grainne while Keane hires a dim witted assassin who grabs the wrong end of the hit.
A petrified Harris turns to the police for protection as Tommy hosts a buyer for his now unique product. The De Barras pick out a plot for Paula but soon are more concerned with their own funeral arrangements as a past crime catches up with them.
Keane comes face to face with Aidan the assassin he hired to kill Frank but who has grabbed the wrong end of the stick. As Keane struggles to call off his own killer, Creed comes to the rescue. The immediate danger is resolved when Aidan accidentally shoots himself. A mortified Frank is livid about the contents of Stan's video phone possibly going public. Creed is charged to find it and he is very interested in locating it but not for Frank.