Waking hours later from another brief nightmare (about the first film's escape chopper being chomped by T-Rex and crashing) on Lex's plane in which she calms him down, Alan expresses disappointment at her for going this far.
She replies that she doesn't expect him or Ellie to forgive her but reiterates her desperation, as Timmy is her ONLY remaining family.
Since their parents' divorce and tragic car accident years later, the two meant everything to each other after having lost Grandpa Hammond too. She asks if there's ANYTHING Alan wouldn't do to save Ellie if it were her on the island and no one would help. He's silent.
Their approach over Isla Sorna gives the familiar awe-inspiring aerial view before landing on shore near Tim's deserted ship. Its front hull is covered in mysterious deep claw marks.
Alan's forced to accompany the group only for Tim's trail to go cold in the jungle.
This leads to Spinosaurus' entrance and the T-Rex fight. Everyone runs for their lives as most of the mercenaries are killed, the one with Ellie's only satellite phone included.
Before they can reach the plane, Spino destroys its wing chasing them. Alan & Lex are forced further into the jungle with the last two mercenaries, getting to know the supposed thugs better as people (One's a dad himself), relying on each other's skills to press on, and finding remains of Tim's crew.
The worried Ellie meanwhile realizes Alan is in trouble when she can't reach him or Lex and, suspecting what's happened, takes little Charlie & his baby sister to stay at a relative's before arranging an appointment at D.C.
All the park survivors were "unofficially" interviewed by the govt. years ago for state of defense purposes, to better ascertain Isla Nublar as a potential threat, leading Ellie to seek one of the agents that worked their case.
Her reputation allows her to finally meet with him days later only to be informed that Lex had already sought off-the-books assistance that was declined. Ellie bluffs with a threat to go public on the government's refusal to help.
Both already know most won't believe her. Thus, she draws her trump card, a file containing detailed photos & examinations of dino carcasses on beaches of Costa Rican islands near Isla Sorna + one found in the U.S.
When asked where she got these, Ellie explains that she & Alan had spent their honeymoon savings travelling a few months in areas they could legally visit + a few they couldn't near the island chain in which Sorna resided.
With help from local villagers among other leads, they substantiated a theory that these creatures having developed the ability to breed suggests it's possible they'd continue to naturally evolve, someday to the point of migrating.
Even with genetic conditioning to make the dino's die when they strayed too far from their set habitat, as Ian said, "life finds a way." Alan and Ellie concluded that no species could survive overseas for generations yet if ever.
That is, until a small specimen washed up on the West coast. The news dismissed it as a decomposed fish but Alan & Ellie were suspicious when the carcass was disposed of so fast.
Needless to say, Washington knew. The cover-up was to avoid panic until all invasive species could be dealt with but Ellie warns that copies of this file are prepared to circulate to the press + multiple scientific colleagues if she's arrested or he won't help her.
As the agent mulls this over, Lex & Alan are split up during the Spino's chase before he's saved from the more intelligent raptors by Tim (using T-Rex pee, minus the humor) and taken to his improvised shelter in the trees.