Impersonating a pilot

Inspired when he sees smiling pilots and pretty stewardesses leaving a hotel, Frank does some research on airline work culture. After some time, he successfully forges a pilot's license and lies his way into a warehouse. He gets a tailored uniform there identifying him as first officer for a commercial airline.

Frank begins passing himself off as a deadhead (a pilot riding along in cockpits on the way to scheduled takeoff points) thus conning his way into free air travel. He explores cities throughout the U.S. and stays well ahead of his expenses with increasingly innovative check fraud.

One tense situation arises when he's brought in for questioning for reasons unclear. All those with whom he has direct interaction, though, see only a charismatic pilot with a license that looks real to their discerning eyes. He accepts their apologies for the inconvenience. (See also "Close calls" below.)

Eventually, Abagnale uses his profits to advance a year's worth of rent in the city of River Bend and lay low.

Impersonating a physician

He whimsically claims to be a doctor on his rental application. At his first opportunity, he forges physician's credentials to supplement his cover.

Members of the local medical community respect his preference not to work, at first. When a position opens for head of a hospital, though, they insist Frank is the best temporary fit. Frank hesitantly accepts the job and comes up with tricks to improve his façade as he goes. He forms a relationship with one Brenda Strong, but the romance is overshadowed by his fear that the FBI could be close to tracking him down.

On one mortifying occasion, he is relieved that a tragedy is averted (no thanks to him) after he did not know what "blue baby" meant.

Impersonating a lawyer

After relocating again, Frank poses as a graduate of Harvard Law School. He is again implored to fill a job opening and has the hiring conditions finagled for him.

One requirement is that he pass the state bar exam. He attempts it with a mix of quick studying and common sense. As if it is standard practice, it is returned after his first two attempts with his wrong answers marked. Thus he manages to pass without cheating on the third try.

He is mired all the while by his lack of knowledge about campus life at Harvard. He must constantly bluff his way through conversations (or evade them) with the real Harvard grads he meets.

Close calls

When Frank resumes his pilot persona, he recruits his own fake airplane crew at a flight attendant school on pretense of a commission for advertising stills. As his confidence increases, so do the amounts on his forged checks.

Investigators have one unwitting, face-to-face encounter with Frank. Keeping his cool, he flashes his wallet open and shut as if showing credentials. He then acts like just another law enforcement official until he can make an inconspicuous exit.

On another occasion, police have a chance to arrest Frank but lack grounds to do so for his known crimes. They invent vagrancy charges and book him on those instead.

Frank is soon bailed out by a bondsman who goes by the name "Bail-Out" Bailey. FBI Agent O'Riley arrives to find Frank gone. He assesses how that happened and barks that, having been paid by check, Bailey has just become a fraud victim. Frank later takes measures to ensure that Bailey actually gets paid.

Capture and prison life

Frank's wanderlust extends to international horizons. He forges a passport, then globetrots through different parts of Europe including France, trying to evade arrest.

One day while grocery shopping, Frank finds himself surrounded by gendarmerie who hold him at gunpoint. He has a moment of genuine mortal terror because the surrender commands they shout are contradictory (Should he lie down, kneel, or stand with hands on head?). He pleads with them not to shoot and submits to arrest.

He serves a long sentence at Perpignan's prison, barely surviving the subhuman living conditions. His only sympathetic visitor is a U.S. liaison who regrets to inform him this is typical for inmates.

After serving six months in Perpignan's prison, Frank is later transferred to Sweden. He stonewalls a few legal inquiries until he's made aware how fair their system is. With his cooperation, a defense attorney argues technicalities about the fraud charges and gets him a reduced sentence. He finds the prison system is much more hospitable.

The prospect of Frank being handed over to other countries with harsh prison systems, like Italy, earns him some sympathy. One of the higher-ups pulls some strings to have him extradited to the United States so he can be in his home country, at least.

Escapes

Frank is flown home where officials wait to take him into custody as he disembarks the plane. Instead, he escapes by unbolting the aircraft's toilet, dropping through to below-deck, dropping again to the runway, and legging it.

After his subsequent arrest, prison officials become suspicious of his dispassionate demeanor. It's atypical of new inmates. They insinuate that he's the undercover inspector and might as well admit it. Frank fans the flame of that false belief. He uses his outside contact privileges to call an old girlfriend and recruit her as an accomplice. According to plan, she calls back from one of two nearby payphones that stand side-by-side. The ruse is that a highly irregular matter needs Frank's immediate attention. The guards can verify this by calling a number provided for the proper authorization (actually the other payphone). Frank is let out and the girlfriend speeds him away. He then flees across the border into Canada where he's ultimately arrested again by Royal Canadian Mounted Police.

Going straight

Frank finally resolves to become a law-abiding citizen. Jobs aren't hard for him to get and managers tend to want to promote him. Consequently though, the employers run background checks and see little choice but to fire him in light of his criminal record.

He finally changes his life by offering his services (for free, at first) as a security consultant on a specialized lecture tour. He speaks to bank personnel, fully disclosing his forgery methods and ways to detect them. He goes on to found a firm that has been famous ever since.