Four men from north of Toronto are facing charges after an assault in the Bancroft area last summer.
Police responded to the original complaint on the evening of June 9, where a pair of men aged 53 and 63 were assaulted during a roadside altercation on Forest View Road in Hastings Highlands.
One of those men was seriously injured in the attack.
After speaking with dozens of witnesses, OPP have charged 21-year-olds Robert Gruber and Adam Parkin, 22-year-old Nicholas Tito and 23-year-old Aaron Parkin with assault and aggravated assault.
Adam Parkin is also charged with dangerous driving.
Tito and both Parkins are from Georgina, while Gruber is from Barrie.