It’s time to say good-bye, TV fans. It’s officially season finale time, and that means all of your favorite shows are going on hiatus.

The beginning of the finales starts Sunday night with “Madam Secretary” Season 1 at 8 p.m. EDT on CBS. The show will explore Elizabeth’s (Tea Leoni) past, and viewers will find out why she joined the CIA, according to Entertainment Weekly. If the night ends with a cliffhanger, viewers can rest assured knowing that the show will return for Season 2.

“Secrets and Lies” doesn’t have a guaranteed Season 2, so viewers are hoping everything is wrapped up on Sunday at 9 p.m. EDT on ABC. They’re waiting to find out who killed Tom (Aiden Malik). It was revealed that the killer is a woman, so Ben (Ryan Phillippe) is officially no longer a suspect. However, now fans are divided about which woman on the show had the best motive to kill the boy.

These are just the beginning of the finales. Check out all of the season and series finales for May below:

Sunday, May 3

  • “Madam Secretary” Season 1 finale airs at 8 p.m. EDT on CBS.
  • “Secrets and Lies” Season 1 ends at 9 p.m. EDT on ABC.
  • “Last Man on Earth” Season 1 finale airs at 9:30 p.m. EDT on Fox.

Monday, May 4

  • “Gotham” Season 1 finale airs at 8 p.m. EDT on Fox.

Tuesday, May 5

  • “New Girl” Season 4 ends at 9 p.m. EDT on Fox.
  • “Weird Loners” Season 1 ends at 9:30 p.m. EDT on Fox.
  • “Person of Interest” Season 4 ends at 10 p.m. EDT on CBS.
  • “Forever” Season 1 wraps up at 10 p.m. EDT on ABC.

Wednesday, May 6

  • “Criminal Minds” Season 10 finale airs at 9 p.m. EDT on CBS.

Thursday, May 7

  • “The Big Bang Theory” Season 8 finishes up at 8 p.m. EDT on CBS.
  • “Scandal” Season 4 finale airs at 9 p.m. EDT on ABC.
  • “Dig” Season 1 ends at 10 p.m. EDT on USA.
  • “The Red Road” Season 2 ends at 10 p.m. EDT on Sundance.

Friday, May 8

  • “Hawaii Five-0” Season 5 wraps up with a two-hour finale at 9 p.m. EDT on CBS.

Sunday, May 10

  • “Once Upon a Time” Season 4 finale, which runs for two hours, airs at 8 p.m. EDT on ABC.
  • “The Good Wife” Season 6 finishes up at 9 p.m. EDT on CBS.
  • “Revenge” Season 4 finale and series finale will air at 10 p.m. EDT on ABC.

Monday, May 11

  • “The Originals” Season 2 will end at 8 p.m. EDT on the CW.
  • “Jane the Virgin” Season 1 finale airs at 9 p.m. EDT on the CW.
  • “Castle” Season 7 ends at 10 p.m. EDT on ABC.

Tuesday, May 12

  • “NCIS” Season 12 wraps up at 8 p.m. EDT on CBS.
  • “NCIS: New Orleans” Season 1 ends at 9 p.m. EDT on CBS.
  • “Agents of SHIELD” Season 2 will finish up with a two-hour finale at 9 p.m. EDT on ABC.

Wednesday, May 13

  • “The Middle” Season 6 ends at 8 p.m. EDT on ABC.
  • “The Goldbergs” Season 2 finale airs at 8:30 p.m. EDT on ABC.

Wednesday, May 13

  • “Arrow” Season 3 ends at 8 p.m. EDT on the CW.
  • “CSI: Cyber” Season 1 will air a two-hour finale at 9 p.m. EDT on CBS.
  • “Nashville” Season 3 finale airs at 10 p.m. EDT on ABC.

Thursday, May 14

  • “The Vampire Diaries” Season 6 ends at 8 p.m. EDT on the CW.
  • “Grey's Anatomy” Season 11 wraps up at 8 p.m. EDT on ABC.
  • “The Odd Couple” Season 1 winds up with a one-hour finale at 8:30 p.m. EDT on CBS.
  • “Reign” Season 2 finale airs at 9 p.m. EDT on the CW.
  • “Scandal” Season 4 ends at 9 p.m. EDT on ABC.
  • “American Crime” Season 1 ends at 10 p.m. EDT on ABC.
  • “The Blacklist” Season 2 finale airs at 10 p.m. EDT on NBC.
  • “Elementary” Season 3 ends at 10 p.m. EDT on CBS.

Sunday, May 17

  • “The Simpsons” Season 26 airs at 8 p.m. EDT on Fox.
  • “Brooklyn Nine-Nine” Season 2 ends at 8:30 p.m. EDT on Fox.
  • “Family Guy” Season 13 wraps up at 9 p.m. EDT on Fox.

Monday, May 18

  • “The Following” Season 3 finale airs at 9 p.m. EDT on Fox.
  • “Stalker” Season 1 finale airs at 9 p.m. EDT on CBS.
  • “NCIS: Los Angeles” will finish Season 6 at 10 p.m. EDT on CBS.

Tuesday, May 19

  • “The Flash” Season 1 finale airs at 8 p.m. on the CW.
  • “Dancing With the Stars” Season 20 gives away the mirror ball trophy in a two-hour finale airing at 9 p.m. EDT on ABC.

Wednesday, May 20

  • “The Mysteries of Laura” Season 1 finale airs at 8 p.m. EDT on NBC.
  • “Supernatural” Season 10 finale airs at 9 p.m. on the CW.
  • “Modern Family” Season 6 ends at 9 p.m. EDT on ABC.
  • “Law & Order: SVU” Season 16 wraps up at 9 p.m. EDT on NBC.
  • “Black-ish” Season 1 ends at 9:30 p.m. EDT on ABC.
  • “Chicago PD” Season 2 finale airs at 10 p.m. EDT on NBC.

Sunday, May 24

  • “Battle Creek” Season 1 ends at 10 p.m. on CBS.
  • “The Lizzie Borden Chronicles” Season 1 ends at 10 p.m. EDT on Lifetime.

Wednesday, May 27

  • “Young & Hungry” Season 2 airs a spring finale at 8 p.m. EDT on ABC Family.

Thursday, May 28

  • “Louie” Season 5 ends at 10:30 p.m. EDT on FX.

Saturday, May 30

  • “Outlander” Season 1 finale airs at 9 p.m. EDT on Starz.