Two-and-a-half-thousand rail workers at the rail company, which runs services between the south west and London, are to be balloted
The RMT union's unhappy about what it says is a high number of unfair dismissals and the use of agency staff.
It claims there's been a breakdown of industrial relations at the company, which has just had its contract extended.
Concerns for missing Plymouth boy
Jayden West not seen since Wednesday
New cabinet member seeks innovative ways to help rural communities
New rural affairs role at Devon County Council
Increase in prostate referrals leads to backlog
Hospital trust says capacity issue is "temporary"
Murder investigation underway in Exmouth
Third man arrested on suspicion of murder
Cash surplus but long battle ahead for Dartmoor National Park Authority
Reserves are "healthy"
