Early on in the episode, when Jo is first arrested and talking to the federal agents, she already has a split lip, although she isn't slapped until a few scenes later.
Jason: The Company will get Jo out.
Sinjin: Well we're not sittin' around on our thumbs waiting on them.
General: The game's over.
(Airwolf fires at the prison)
Agent: Not yet.
Although aired as episode two of season 4, this episode was actually the first produced episode for season 4.