Millie Take:

In millie timeline, she lost william to the insolence infection

She couldn't save him...

So she....

She left him after she...

After her escape, she gave her child Isaac wolf to the Russian military

Trying to keep him safe

So she decided to go back to the US

Trying to find his husband sister....

Years later

A portal open...

She notice someone...

So they fought but that person that she was fighting...

And that person was william...

As she fell as she tried to kill the person she thought he was dead...

But not her william...

Another from a different timeline...

William take:

After the infection spread in his timeline

His wife got infected, realized that she tied herself to the wall...

But didn't attack her son...

William couldn't bear to see his wife turn...

He tried to....

He couldn't...

He left her....

After his escape, he gave his child Isaac, to the Russian military

He needed to return to the US to forget about his past...

Years later...

He and his crew (Willow, tigry, pony)

Travel to another timeline

William wanted to go alone before he got separated from the crew...

He was looking over the ocean, reminiscing about his past...

But suddenly...

He was attack by an unknown assailant....

But as they both fought...

William realized that the person that he was fighting was...

Millie...

And then she fell into the ocean....

William was hesitant, but remembers that he couldn't lose the person again, not once...

So he decided to save her...

But he couldn't know where was the pier...

But then he saw an island.....

After going to the nearest island to get to safety...

As he realized...

The crew left without him...

Now stranded on an island by himself and someone he lost once but won't loose again...

But this island...

Holds many secrets....