Tom, Darcy and their families gather for an ultimate
destination wedding on a private island in the Philippines. Just as the couple are away arguing about the wedding, their guests are taken hostage. The pirates demand $45 million from Darcy's wealthy father Robert. He refuses to pay until he has proof that Darcy is alive. Darcy and Tom are captured apart from the wedding party, but manage to escape their captors, killing one of the pirates. As they try to evade recapture, Darcy and Tom air their respective doubts about the wedding. Cornered hiding in a vault beneath the manager's office, Tom surrenders to them so Darcy can stay hidden. When he rejoins the rest of the wedding party, Tom reveals that Darcy's ex-fiancé Sean had hired the pirates. With his plot exposed, Sean goes to hunt down Darcy, taking Robert's girlfriend Harriet as a hostage. Meanwhile, Darcy joins Tom and the rest at the pool where she and Tom admit that they still want to marry. The wedding party members realize that Harriet was in on the plot with Sean. Tom asks the two pirates standing guard to let them complete the wedding ceremony, and Robert says that he will release the money if they let them get married. As the guests sing "
I'll Be", Tom and Darcy rush the pirates, and Darcy takes a grenade off one. One pirate surrenders; the other runs, then begins firing on the venue. Tom's mother Carol grabs a weapon from the ground and returns fire. Darcy throws the grenade in the air so Tom can bat it at the pirate, who is killed in the explosion (which also sets off the fireworks that had been staged for the wedding celebration). As the wedding party goes to safety, Darcy and Tom race to get help, but are confronted on the dock by Sean. Tom fights him, then Tom and Darcy escape in a boat. Harriet tries to stop them in a helicopter. Sean, who had managed to stay with them by grabbing a mooring line, climbs aboard and fights Tom again while Darcy drives the boat. A
parasail is released, taking Tom and Sean into the air. Tom zips down the line to the boat deck. He and Darcy cut the line, sending the parasail loose into the helicopter's rotors, which kills both Sean and Harriet. Back on the beach, as authorities take the remaining pirates into custody, Tom and Darcy get married. ==Cast==