I've told you about the fact that I'm captain of a spaceship back home, so I hope I can explain this well enough. My ship was crippled by another ship, pilotedby the man who was in charge of Starfleet, Admiral Marcus. He wanted me to kill Khan and then he was going to kill me and my entire crew by destroying my ship and making it look like a hostile alien race had done it. One of my friends got on board Admiral Marcus's ship and disabled it. I took Khan onto that ship to stop Admiral Marcus from doing what he had planned and have him brought up on charges. I realized Khan had other plans once we got on the ship. Khan ended up killing Admiral Marcus and then sent me back to my ship, which he then fired on. He ended up breaking the nuclear re actor that powered my ship and the only way to fix it was to go inside the re actor chamber. I died from radiation poisoning a few minutes after I restored power to my ship. But a serum from Khan's blood and some quick thinking on my friend Bones's part allowed them to bring me back to life. There's an entire movie based on everything that happened between me and Khan, actually.
For the most part, yeah. Bo's not a typical five-year-old in some ways, but I like her a lot.