When "Survivor" returns for its 27th season, former players will compete with - and ultimately against - their loved ones in a fresh twist for the reality show.

Alliances and relationships will be tested and bonds will be broken when mothers, daughters, brothers, spouses and partners compete against each other, raising the question: what is thicker – blood or water? 

The upcoming edition will include the return of Redemption Island, where castaways who have been eliminated from the competition can seek redemption and return for a chance to win $1 million.

New this season, however, is loved ones will be forced to choose whether to "save" their partner on Redemption Island and switch places with them, thus allowing their loved one to immediately re-enter the game, or leave them in exile to survive on their own.

Things could definitely get interesting.

The cast includes:

Returning Player: Tyson Apostol (Tocantins, Heroes Vs. Villains)
Loved One: Rachel Foulger (Girlfriend)

Returning Player: Rupert Boneham (Pearl Islands, All-Stars, Heroes Vs. Villains)
Loved One: Laura (Wife)

Returning Player: Aras Baskauskas (Panama—exile Island)
Loved One: Vytas (Brother)

Returning Player: Gervase Peterson (Borneo)
Loved One: Marissa (Niece)

Returning Player: Kat Edorsson (One World)
Loved One: Hayden Moss (Boyfriend And Big Brother 12 Winner)

Returning Player: Candice Cody (Cook Islands, Heroes Vs. Villains)
Loved One: John (Husband)

Returning Player: Laura Morett (Samoa)
Loved One: Ciera Eastin (Daughter)

Returning Player: Monica Culpepper (One World)
Loved One: Brad (Husband)

Returning Player: Colton Cumbie (One World)
Loved One: Caleb Bankston (Fiance)

Returning Player: Tina Wesson (Australian Outback (winner), All-Stars)
Loved One: Katie Collins (Daughter)

"Survivor: Blood vs. Water" kicks off with a special 90-minute premiere on Wed., Sept. 18, on CBS.