Two college friends pitch a public safety app and an Air Force veteran has an augmented reality breakthrough.

A father-daughter duo pitches a digital backpack, while Gary and will.i.am have a showdown over an exercise app.

It’s a battle of the advisors when all four want to mentor the same developer. Who will emerge victorious?

The hilarious Damon Wayans Jr. is among this week’s developers, pitching an app that connects entertainers with gigs.

Personalised weather forecasts from a cat, an emotional wellness app and a live news app from the former head of BuzzFeed.

Things get heated when Jessica and Gary both make passionate pitches to mentor a personal trainer for heartbreak.