1988 Dodge powerram 50

Have a 1988 dodge power ram 50 engine is a 2.6 5 speed manual transmission. Here is the problem My husband purchased the truck 2 days ago when he drove it home the clutch seemed to slip a little at first but did ok and he drove it about 5 miles home. It started to be hard to move. You could rev the engine and it would move a little. It would move in 4 wd but not 2. Now it can be started in first gear but will not move at all. Please help us. It has clutch cables can these be adjusted or is the clutch out thanks again