Kelly O'Sullivan

In the Season 2 finale, the guys treat a man who fears hospitals. In other events, Brian confronts his fear of moving out; and Johnny has a fear realized when…

After observing the respect that Theresa receives on the job, Johnny gets the guys to revive an old program in order to get a little respect for EMTs.

Johnny and his mom deal with his dad’s slipping into a coma in very different ways: He tries to repay an old debt while she places bets on what time…

Johnny, Theresa, Billy and Maeve begin to play tennis together; Cash helps Hank shop for his mother’s birthday gift; Brian rides along with Voodoo and Stats.

A drunken brawl among sports fans reverberates at a family barbecue, where disputes occur over a new gas grill.

After saving a local mobster, Brian encourages the guys to make changes in the rig. Hank considers the worst person he has ever helped. Billy looks for a neighborhood pony.

A car crash at a firehouse releases an unusual passenger; and Billy accompanies Theresa and Maeve to a sample sale.

Johnny must deal with his prejudice against rich, white men when Hank begins dating his landlord; Billy helps Brian work through heartbreak.

Johnny and Hank are horrified when they find out they have to ride along on Brian’s first night shift.

The guys treat an overly-ambitious gym rat; Johnny and Hank get free passes at a health club; Voodoo tests Brian’s limits.

The guys consider ideas of fate and serendipity when random events occur; Johnny is upset to learn that Theresa does not believe destiny had a hand in their being together.

The murky relationship between the caregiver and the cared-for is exposed when Johnny encounters an overly grateful patient and Brian agrees to escort an injured young woman to her prom.

When the guys save a landlord with a nut allergy, Johnny finds the perfect apartment to share with Theresa, and his relationship with her enters a new ”territory.” Brian tries…

Theresa has a brush with death on the job and resolves to join the FBI in Washington. When Johnny proposes marriage to keep her in Chicago, they must overcome a…

While teaching a class to prospective EMTs, the crew recalls a day that ran the gamut from the mundane to the catastrophic, and Johnny tries to find out who ate…

After it’s revealed that Hank is deathly afraid of spiders and Brian comes face-to-face with his suicidal doppleganger, everyone examines their own fears, and Johnny gets payback for all the…

Johnny steps up for his friend when Hank gets an invitation to his Ex’s wedding, while Theresa has trouble seeing eye to eye with a wedding guest. Meanwhile, Brian learns…

Johnny introduces Theresa to his father and is taken aback when his Dad drops a bomb of a secret on him. Elsewhere, Brian struggles to find the right moves to…

After a drunken hook up, Johnny and Theresa decide they can have ”just sex” so long as they establish clear ground rules. Meanwhile, the guys treat injuries resulting from a…

A patient knocking on death’s door pleads with the guys to go back to his house and clear the search history on his computer. After they stumble across a troubling…

A lightning strike at a church picnic gets the guys to start thinking about how there’s no justice in sickness and injury, because like it or not, the “rain falls…

While Brian has his first day on the rig, Johnny runs into Theresa for the first time since they took ”a break,” and Hank and the guys discuss their ”In…

When a champagne bomb is delivered to Constantine, he and Celeste (Jennifer Beals) go on high alert to determine who wants him dead. Meanwhile, Nate turns to Grace after he…