ABINGDON, Va. -

Three people accused of cockfighting and gambling entered guilty pleas in federal court in Abingdon, Virginia.

According to the U.S Attorney's office, investigators went undercover to bust the "Big Blue" cockfighting pit, an operation spanning Virginia and Kentucky. A Wise County man agreed to a plea on Thursday.

Jonathan Robinson, 33, confessed to conspiring to operate a gambling enterprise, illegally conducting cockfights and distributing Oxycodone. He could spend up to 35 years in prison and pay up to $1.75 million in fines.

Jonathan's dad, Wesley Robinson, 57, also from Wise County, made a plea deal last month on similar charges and could spend up to 15 years in prison and be fined up to $750,000.

Another father-son team from Kentucky, Walter and Joshua Stumbo, were not given plea deals.

They could get more jail time and even higher fines.