Where is Rachel? Kirsty and Miles agree to keeping their relationship quiet for now. Elliot kidnaps Nicole. Jack and Martha get married, then Martha's heart fails.

Kirsty and Miles

Irene isn't surprised about Kirsty and Miles kissing and thinks it's time for her to move on. Kirsty worries what other people will think, since she's still married to Kane and doesn't want to hurt anyone.

Kirsty tells Miles that she really enjoyed the kiss - they agree to take things as they come. Kirsty wants to keep things quiet about their relationship for a while. They kiss again.

Tony and Rachel

The day of the wedding, Rachel is missing! Leah and Jack search everywhere for her and find her honeymoon bag missing.

Tony can't understand where she is two hours before the wedding. Tony remembers Jimmy and goes and asks him where Rachel is. Jimmy says he gave Rachel a wedding present the night before and he saw her drive off with her bag in the boot of her car.

In desperation, Leah looks at Rachel's emails - there's some there from Hugh, who is back from South Africa, who wants to see Rachel.

Tony is worried that Rachel has ditched him and cancels the wedding then takes off in his car.

Roman, Elliot and Nicole

Roman comes home to find Elliot in his house who wants the truth about Mark's death - not the official story - from Roman.

So Roman sits down and talks - telling him how Mark wanted to surrender but none of the squad wanted that to go on his record. Elliot thinks he's lying and says it isn't over: he'll never forgive him for Mark's death.

Roman gets Nicole to promise to tell him if she sees Elliot and tells her about the visit from Elliot. Roman tells Nicole that he didn't and couldn't tell Elliot the whole truth about Mark's death. Roman tells her that Nicole's the most important thing in his life and he will always protect her, no matter what. Nicole and Roman hug, saying "I love you".

Geoff asks Nicole out for a coffee and she agrees.

Later, Elliot kidnaps Nicole! He calls Roman and when he races home, there is a DVD for Roman to play showing Nicole tied up. Elliot says he will give him a chance to prove what a kind of man he is by drinking a flask, or Nicole dies!

Roman drinks it, and passes out on the floor.

Elliot forces Nicole onto a boat to go for a dive. Geoff comes by and is worried for Nicole, so gets on board, despite Elliot not wanting him there.

After the dive, Elliot only resurfaces, leaving Nicole on the ocean floor weighted down! Geoff dives into the water to look for Nicole, and Elliot fires a spear gun into Geoff's thigh! Then Elliot takes off in the boat.

Jack and Martha

Martha's not feeling well - she's breathless and tired. In hospital, she's told she has a small blood clot, related to her operation. Martha's frustrated at being in hospital yet again.

Jack asks Martha to marry him today at the hospital!

In the gardens on a gorgeous day in front of Alf and Colleen, Jack and Martha pledge their love to each other:

Jack: "Martha today is about making the most out of every moment. We've already been through so much, it proves that we can overcome anything side by side. I love you so much and I promise to spend the rest of my life making you happy."

Martha: "You're my best friend, you always have been. Even when we were apart, I knew we were always meant to be together. You make me feel so strong Jack, you're my soulmate, I love you so much."

But after the ceremony, Martha collapses! Hospital staff race to save Martha's life.

Jack feels guilty for organising the wedding but Alf encourages him that Martha will pull through.

Martha's heart stops - will she be revived?

Australian air date: Thursday August 7 2008