External Harddrive EFI partition will not mount

Hey all, So i was running a antivirus scan on my external hard drive which contains time machine backups. The scan was taking several hours (10 before i set it up on the dresser to go to sleep). The external drive is a toshiba 1TB and it has a button to unmount and remount the drive. Well apparently my cat pressed this button several times over night. iTunes was also open as i was playing music on my apple tv earlier, and my library is on the external drive so in all it caused my entire computer to crash and i had to force it to shutdown. upon restarting my drive would not load. I opened terminal and ran diskutil list to get this:

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage MACBOOK 120.5 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

/dev/disk1 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: MACBOOK +120.1 GB disk1

Logical Volume on disk0s2

07AF2134-F746-4D16-89FF-DF93EA6F4AAE

Unlocked Encrypted

/dev/disk2 (external, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk2

1: EFI EFI 209.7 MB disk2s1

2: Apple_HFS TOSHIBA EXT 999.9 GB disk2s2

So i tried mounting the drive:

MacBook-Pro:~ Buckles$ diskutil mountdisk /dev/disk2

Volume(s) mounted successfully

but opening the drive in finder shows no files so i tried ejecting it which does nothing. I tried unmounting which failed because one or more partitions could not be unmounted so i unmounted individual partitions and got:

MacBook-Pro:~ Buckles$ diskutil unmount /dev/disk2s1

disk2s1 was already unmounted

which is my EFI partition. After researching it said the EFI should be empty, but if it doesn't mount could that be why my external drive is showing "empty" in finder? (Its not actually showing empty. It says theres only 238Gb available so it know something is there. It just doesn't show any files.) What can i do to show my files again?