CHICAGO (thefutoncritic.com) -- "Arrested Development" and "Tru Calling," FOX's most notable "bubble" series, will wrap their inaugural seasons come the last week of April.

"Arrested" will close its freshman season on Sunday, April 25 at 9:30/8:30c while "Calling" is set to conclude its first season with a two-hour finale on Thursday, April 29 at 8:00/7:00c.

Here's how FOX describes the finales, via press release:

Note: The following episode descriptions contain major spoilers for future storylines.

GEORGE SR. MAKES A RUN FOR THE BORDER ON THE SEASON FINALE OF "ARRESTED DEVELOPMENT" SUNDAY, APRIL 25, ON FOX

Henry Winkler Guest-Stars

When George Sr. has a heart attack, the family heads to the hospital only to discover he's escaped and is heading for Mexico in the stolen staircar with Kitty. Meanwhile, Lindsay decides to leave Tobias until a book he wrote a long time ago becomes a gay bestseller, and Buster and Annyong compete over women on the "Let 'Em Eat Cake" episode of ARRESTED DEVELOPMENT Sunday, April 25 (9:30-10:00 PM ET/PT) on FOX. (ARR-122) (TV-TBA)

Guest Cast: Henry Winkler as Barry Zuckerhorn, Justin Lee as Annyong, Judy Greer as Kitty, John Beard as Himself, Stacy Glenrock Woods as Trisha Thoon, Matt Walsh as D.A. and Alessandra Toreson as Ann.

BACK-TO-BACK EPISODES OF "TRU CALLING" FOR SEASON FINALE, APRIL 29 ON FOX

Tru and Davis remain stunned by the revelation that Jack can relive days like Tru. Excited to have a new partner, Tru teams up with Jack to ensure a doctor's dying wish to help others in his life, but as the day progresses, Tru becomes increasingly suspicious of Jack's intentions. And when Jack attempts to stop Tru from saving an innocent victim, she comes to the startling realization that he isn't her ally but her enemy in the episode "D.O.A." Thursday, April 29 (8:00-9:00 PM ET/PT) on FOX. (TRU-119) (TV-TBA)

Guest Cast: Andrew Airlie as Frank Colvin, John Reardon as Randall, Nick Wechsler as Marc Colvin, Lisa Waltz as Grace, Leanna Nash as Nadine.

TRU HAS EPIC BATTLE WITH JACK IN SECOND HOUR OF "TRU CALLING" SEASON FINALE, APRIL 29 ON FOX

In the second season-finale episode, Tru and Jack � her sworn nemesis � find themselves on a collision course with the stakes as high as they can be after the body of Tru's brother, Harrison, asks for help. Despite his friendship with Harrison, Jack vows to ensure Harrison's death when the day rewinds. Tru struggles to protect her brother, and the game is on as an epic battle of life and death between Tru and Jack is set in motion. But Tru's attempts to save Harrison will lead to the shocking death of someone very close to her in "Two Weddings and a Funeral" Thursday, April 29 (9:00-10:00 PM ET/PT) on FOX. (TRU-120) (TV-TBA)

Guest Cast: John Reardon as Randall, Cotter Smith as Richard Davies, Lauren Stamile as Emma, David Lipper as Donnie, Sage Testini as Ethan.