Lucan falls for a Russian gymnast whose life is in danger.
Lucan returns to his old countryside haunts and runs into trouble as the farmers hunt down the wolves he grew up with, and a local man with a guilty secret develops a grudge against him.
Lucan's skeptical of the couple claiming to be his parents but just as he's starting to be convinced, they're chased away by gunmen.
Lucan becomes a prizefighter to pay the bills for a private detective to find his parents. The private detective is just using Lucan stringing him along with false leads just to bilk him out of money. Fight promoters ask offer a cut of their expected illegal wager proceeds when they ask Lucan to throw a fight. If Lucan does not take a fall in the 10th round his doctor friend being held hostage will be killed by the folks in line to profit from the rigged fight. Lucan with help of a friend manages to turn the tables on the criminals get his doctor friend back and escape Police Detective Prentiss.
Lucan's search for his parents leads him to a custody battle between a young widow and her mother-in-law.
When Lucan rescues a boy from falling to his death, he unwittingly brings danger to the boy's family, key witnesses in a mob trial.
A sick Lucan rambles about the crime he witnessed and is suspected of being the culprit, but the real danger is his guilty doctor.
Prior to the eruption of a forest fire, Lucan rescues a domesticated wolf on his way to a mountain rendezvous with his friend Dr. Hoagland.
An eccentric millionaire holds Lucan hostage to acquire Dr. Hoagland's newly developed antidote for hallucinogenic poisoning to cure his drug-addled son.
A government agent plots to use Lucan's superb tracking instincts to locate a hidden gold mine.