Things that need to happen: Martha Jones, River Song, and Ace McShane walk into a bar.
No wait, scratch that. River and Ace get into a bar fight after a vehement disagreement about weaponry, Martha is the only one there with the brass cojones to wade in and break it up, and the three of them end up comparing battle scars over drinks.
Zoom Info

Things that need to happen: Martha Jones, River Song, and Ace McShane walk into a bar.
No wait, scratch that. River and Ace get into a bar fight after a vehement disagreement about weaponry, Martha is the only one there with the brass cojones to wade in and break it up, and the three of them end up comparing battle scars over drinks.
Zoom Info

Things that need to happen: Martha Jones, River Song, and Ace McShane walk into a bar.
No wait, scratch that. River and Ace get into a bar fight after a vehement disagreement about weaponry, Martha is the only one there with the brass cojones to wade in and break it up, and the three of them end up comparing battle scars over drinks.
Zoom Info

Things that need to happen: Martha Jones, River Song, and Ace McShane walk into a bar.

No wait, scratch that. River and Ace get into a bar fight after a vehement disagreement about weaponry, Martha is the only one there with the brass cojones to wade in and break it up, and the three of them end up comparing battle scars over drinks.