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One Tree Hill S1E19 — How Can You Be Sure?
8.0
One Tree Hill•Season 1•Episode 19

How Can You Be Sure?

8.0/10 · 613 votesApr 20, 200441 min

Ranked #16 of 22 in Season 1•−0.2 vs season avg

Discussion

Lucas must make a difficult decision regarding Brooke. Haley considers having sex with Nathan.

Directed byThomas J. Wright
Written byKaryn Usher
Previous episodeE18 · To Wish Impossible ThingsNext episodeE20 · What Is and What Should Never Be
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Seasons9

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Season 1 Episodes22

Pilot stillE1 8.3

Pilot

The Places You Have Come to Fear the Most stillE2 7.9

The Places You Have Come to Fear the Most

Are You True? stillE3 7.9

Are You True?

Crash Into You stillE4 8.1

Crash Into You

All That You Can't Leave Behind stillE5 8.0

All That You Can't Leave Behind

Every Night Is Another Story stillE6 8.8

Every Night Is Another Story

Life in a Glass House stillE7 8.1

Life in a Glass House

The Search for Something More stillE8 8.4

The Search for Something More

With Arms Outstretched stillE9 8.1

With Arms Outstretched

You Gotta Go There to Come Back stillE10 8.1

You Gotta Go There to Come Back

The Living Years stillE11 7.8

The Living Years

Crash Course In Polite Conversations stillE12 8.3

Crash Course In Polite Conversations

Hanging by a Moment stillE13 8.6

Hanging by a Moment

I Shall Believe stillE14 8.5

I Shall Believe

Suddenly Everything Has Changed stillE15 8.1

Suddenly Everything Has Changed

The First Cut is the Deepest stillE16 7.9

The First Cut is the Deepest

Spirit In the Night stillE17 8.4

Spirit In the Night

To Wish Impossible Things stillE18 8.5

To Wish Impossible Things

How Can You Be Sure? stillE19 8.0Now viewing

How Can You Be Sure?

What Is and What Should Never Be stillE20 8.0

What Is and What Should Never Be

The Leaving Song stillE21 8.0

The Leaving Song

The Games That Play Us stillE22 8.8

The Games That Play Us

Cast9

Chad Michael Murray

Chad Michael Murray

Lucas Scott

James Lafferty

James Lafferty

Nathan Scott

Bethany Joy Lenz

Bethany Joy Lenz

Haley James Scott

Sophia Bush

Sophia Bush

Brooke Davis

Hilarie Burton Morgan

Hilarie Burton Morgan

Peyton Sawyer

Barry Corbin

Barry Corbin

Whitey Durham

Craig Sheffer

Craig Sheffer

Keith Scott

Moira Kelly

Moira Kelly

Karen Roe

Paul Johansson

Paul Johansson

Dan Scott

Crew12

T

Thomas J. Wright

Director

Karyn Usher

Karyn Usher

Writer

M

Mark Schwahn

Executive Producer

M

Mark B. Perry

Executive Producer

B

Billy Dickson

Director of Photography

T

Tim Bellen

Camera Operator

S

Stan Salfas

Editor

K

Kelly Jefferson

Key Makeup Artist

C

Clarinda Wong

Assistant Editor

C

Craig Fincannon

Location Casting

R

Rick Clark

First Assistant Director

Karyn Usher

Karyn Usher

Executive Story Editor

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Episode Summary

"How Can You Be Sure?" is episode 19 of One Tree Hill season 1. It scored 8.0/10 from 613 votes, ranking #16 of 22 episodes this season (season average 8.2). Directed by Thomas J. Wright and written by Karyn Usher, it aired on April 20, 2004.

Next: E20 · What Is and What Should Never BeBest of Season 1