Legends of Tomorrow2016

Rip Hunter:
Oy! Where do you think you're going?

Dr. Martin Stein:
To break into my old lab and bring us back the particle tracker.

Rip Hunter:
Fine, but perhaps, you should take Jefferson and Sara to as your intermediaries. Look, interacting with yourself in the past can have catastrophic effects upon the future.

Dr. Martin Stein:
Fascinating.

[to Jefferson and Sara]

Dr. Martin Stein:
Let's go.