SUNDAY, APRIL 20

"ONE TREE HILL" � (6:00-7:00 p.m. ET)

"Echoes, Silence, Patience & Grace" (CONTENT RATING TBD) (HDTV)

SECRETS ARE REVEALED � Lucas (Chad Michael Murray) picks up the pieces after being left at the altar by Lindsey (guest star Michaela McManus, "The Beautiful Lie"), while Nathan (James Lafferty) and Haley (Bethany Joy Galeotti) deal with the repercussions of Jamie's (Jackson Brundage) abduction. Brooke (Sophia Bush) is haunted by her past as she considers adopting, while Peyton (Hilarie Burton) gets a visit from an old friend. Greg Prange directed the episode written by Mark Schwahn (#3T6813).