On a prowler report at a non-existent address someone fires multiple rounds at the officers. Next day on a run to a heliport to pick up a blood donor, they are again fired upon. Evidence points to the same shooter both times and reveals that Adam-12 is being targeted by a man known to pass bad checks. Reed's wife receives a call indicating that Reed is the target. A man tries to kill himself with gasoline at a gas station but Malloy stops him using a fire extinguisher. Another nighttime prowler call turns up a wino that Reed comes close to shooting. Malloy drops Reed off at his house when a man walks by, known to Reed, and tells him that his car has broken down. Reed offers to let him use his phone. Malloy notices there is a car like the one the suspect is supposed to be driving down the street as he leaves.